Tootfinder

Let’s remember that Ilya Shapiro is paid by the same rightwing billionaires who pay Thomas and Alito and the Fed Soc.
Paul Singer bribed Alito, and runs Shapiro’s employer Manhattan.
Shapiro is just as corrupt as the Supreme Court. The money even comes from the same place.

Robot Swarm Control Based on Smoothed Particle Hydrodynamics for Obstacle-Unaware Navigation
Michikuni Eguchi, Mai Nishimura, Shigeo Yoshida, Takefumi Hiraki
https://arxiv.org/abs/2404.16309

Robot Swarm Control Based on Smoothed Particle Hydrodynamics for Obstacle-Unaware Navigation
Robot swarms hold immense potential for performing complex tasks far beyond the capabilities of individual robots. However, the challenge in unleashing this potential is the robots' limited sensory capabilities, which hinder their ability to detect and adapt to unknown obstacles in real-time. To overcome this limitation, we introduce a novel robot swarm control method with an indirect obstacle detector using a smoothed particle hydrodynamics (SPH) model. The indirect obstacle detector can predi…

Defending Against Indirect Prompt Injection Attacks With Spotlighting
Keegan Hines, Gary Lopez, Matthew Hall, Federico Zarfati, Yonatan Zunger, Emre Kiciman
https://arxiv.org/abs/2403.14720

Defending Against Indirect Prompt Injection Attacks With Spotlighting
Large Language Models (LLMs), while powerful, are built and trained to process a single text input. In common applications, multiple inputs can be processed by concatenating them together into a single stream of text. However, the LLM is unable to distinguish which sections of prompt belong to various input sources. Indirect prompt injection attacks take advantage of this vulnerability by embedding adversarial instructions into untrusted data being processed alongside user commands. Often, the …

Integer Programming Using A Single Atom
Kapil Goswami, Peter Schmelcher, Rick Mukherjee
https://arxiv.org/abs/2402.16541 https://arxi…

Integer Programming Using A Single Atom
Integer programming (IP), as the name suggests is an integer-variable-based approach commonly used to formulate real-world optimization problems with constraints. Currently, quantum algorithms reformulate the IP into an unconstrained form through the use of binary variables, which is an indirect and resource-consuming way of solving it. We develop an algorithm that maps and solves an IP problem in its original form to any quantum system that possesses a large number of accessible internal degre…

Probing conversion-driven freeze-out at the LHC
Jan Heisig, Andre Lessa, Lucas Magno D. Ramos
https://arxiv.org/abs/2404.16086 https://

Probing conversion-driven freeze-out at the LHC
Conversion-driven freeze-out is an appealing mechanism to explain the observed relic density while naturally accommodating the null-results from direct and indirect detection due to a very weak dark matter coupling. Interestingly, the scenario predicts long-lived particles decaying into dark matter with lifetimes favorably coinciding with the range that can be resolved at the LHC. However, the small mass splitting between the long-lived particle and dark matter renders the decay products soft, …

Small Noise Analysis of Non-Parametric Closed-Loop Identification
Mohamed Abdalmoaty, Roy S. Smith
https://arxiv.org/abs/2403.15771 https://

Small Noise Analysis of Non-Parametric Closed-Loop Identification
We revisit the problem of non-parametric closed-loop identification in frequency domain; we give a brief survey of the literature and provide a small noise analysis of the direct, indirect, and joint input-output methods when two independent experiments with identical excitation are used. The analysis is asymptotic in the noise variance (i.e., as the standard deviation of the innovations $σ\to 0$), for a finite data record of length $N$. We highlight the relationship between the estimators acc…

K-Act2Emo: Korean Commonsense Knowledge Graph for Indirect Emotional Expression
Kyuhee Kim, Surin Lee, Sangah Lee
https://arxiv.org/abs/2403.14253 https://…

K-Act2Emo: Korean Commonsense Knowledge Graph for Indirect Emotional Expression
In many literary texts, emotions are indirectly conveyed through descriptions of actions, facial expressions, and appearances, necessitating emotion inference for narrative understanding. In this paper, we introduce K-Act2Emo, a Korean commonsense knowledge graph (CSKG) comprising 1,900 indirect emotional expressions and the emotions inferable from them. We categorize reasoning types into inferences in positive situations, inferences in negative situations, and inferences when expressions do no…

This https://arxiv.org/abs/2102.01155 has been replaced.
link: https://scholar.google.com/scholar?q=a

G-Formula for Observational Studies under Stratified Interference, with Application to Bed Net Use on Malaria
Assessing population-level effects of vaccines and other infectious disease prevention measures is important to the field of public health. In infectious disease studies, one person's treatment may affect another individual's outcome, i.e., there may be interference between units. For example, the use of bed nets to prevent malaria by one individual may have an indirect effect on other individuals living in close proximity. In some settings, individuals may form groups or clusters where interfe…

Complex-Valued Signal Recovery using the Bayesian LASSO
Dylan Green, Jonathan Lindbloom, Anne Gelb
https://arxiv.org/abs/2403.16992 https://

Complex-Valued Signal Recovery using the Bayesian LASSO
Recovering complex-valued image recovery from noisy indirect data is important in applications such as ultrasound imaging and synthetic aperture radar. While there are many effective algorithms to recover point estimates of the magnitude, fewer are designed to recover the phase. Quantifying uncertainty in the estimate can also provide valuable information for real-time decision making. This investigation therefore proposes a new Bayesian inference method that recovers point estimates while also…

Integer Programming Using A Single Atom
Kapil Goswami, Peter Schmelcher, Rick Mukherjee
https://arxiv.org/abs/2402.16541 https://arxi…

Integer Programming Using A Single Atom
Integer programming (IP), as the name suggests is an integer-variable-based approach commonly used to formulate real-world optimization problems with constraints. Currently, quantum algorithms reformulate the IP into an unconstrained form through the use of binary variables, which is an indirect and resource-consuming way of solving it. We develop an algorithm that maps and solves an IP problem in its original form to any quantum system that possesses a large number of accessible internal degre…

Quantitative Analysis of Roles of Direct and Indirect Pathways for Action Selection in The Basal Ganglia
Sang-Yoon Kim, Woochang Lim
https://arxiv.org/abs/2404.13888

Quantitative Analysis of Roles of Direct and Indirect Pathways for Action Selection in The Basal Ganglia
The basal ganglia (BG) show diverse functions for motor and cognition. Here, we are concerned about action selection performed by the BG. Particularly, we make quantitative analysis of roles of direct pathway (DP) and indirect pathway (IP) for action selection in a spiking neural network with 3 competing channels. For such quantitative work, in each channel, we get the competition degree ${\cal C}_d$, given by the ratio of strength of DP (${\cal S}_{DP}$) to strength of IP (${\cal S}_{IP}$) (i.…

Cosmology of axion dark matter
Ciaran A. J. O'Hare
https://arxiv.org/abs/2403.17697 https://arxiv.org/pdf/2403.17697

Cosmology of axion dark matter
I present an introduction and topical review on axions as a dark matter candidate. Emphasis is placed on issues surrounding the cosmology of axion dark matter that are relevant for present-day searches, including: early-Universe production mechanisms, predictions of the axion mass, bounds on axion properties derived from cosmological data, as well as the direct and indirect detection of relic axion populations.

Phonon softening and atomic modulations in EuAl$_4$
A. N. Korshunov, A. S. Sukhanov, S. Gebel, M. S. Pavlovskii, N. D. Andriushin, Y. Gao, J. M. Moya, E. Morosan, M. C. Rahn
https://arxiv.org/abs/2402.15397

Phonon softening and atomic modulations in EuAl$_4$
EuAl$_4$ is a rare earth intermetallic in which competing itinerant and/or indirect exchange mechanisms give rise to a complex magnetic phase diagram, including a centrosymmetric skyrmion lattice. These phenomena arise not in the tetragonal parent structure but in the presence of a charge density wave (CDW), which lowers the crystal symmetry and renormalizes the electronic structure. Microscopic knowledge of the corresponding atomic modulations and their driving mechanism is a prerequisite for …

Singular limit of a chemotaxis model with indirect signal production and phenotype switching
Philippe Lauren\c{c}ot (LAMA), Christian Stinner
https://arxiv.org/abs/2403.13402

Singular limit of a chemotaxis model with indirect signal production and phenotype switching
Convergence of solutions to a partially diffusive chemotaxis system with indirect signal production and phenotype switching is shown in a two-dimensional setting when the switching rate increases to infinity, thereby providing a rigorous justification of formal computations performed in the literature. The expected limit system being the classical parabolic-parabolic Keller-Segel system, the obtained convergence is restricted to a finite time interval for general initial conditions but valid f…

Searching Search Spaces: Meta-evolving a Geometric Encoding for Neural Networks
Tarek Kunze, Paul Templier, Dennis G Wilson
https://arxiv.org/abs/2403.14019

Searching Search Spaces: Meta-evolving a Geometric Encoding for Neural Networks
In evolutionary policy search, neural networks are usually represented using a direct mapping: each gene encodes one network weight. Indirect encoding methods, where each gene can encode for multiple weights, shorten the genome to reduce the dimensions of the search space and better exploit permutations and symmetries. The Geometric Encoding for Neural network Evolution (GENE) introduced an indirect encoding where the weight of a connection is computed as the (pseudo-)distance between the two l…

Taiwan sanctions Russian supplier and tightens export controls to block indirect tech transfers to Russia: https://benborges.xyz/2024/02/03/taiwan-sanctions-russian.html

Cosmology of axion dark matter
Ciaran A. J. O'Hare
https://arxiv.org/abs/2403.17697 https://arxiv.org/pdf/2403.17697

Cosmology of axion dark matter
I present an introduction and topical review on axions as a dark matter candidate. Emphasis is placed on issues surrounding the cosmology of axion dark matter that are relevant for present-day searches, including: early-Universe production mechanisms, predictions of the axion mass, bounds on axion properties derived from cosmological data, as well as the direct and indirect detection of relic axion populations.

This https://arxiv.org/abs/2312.14894 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

micrOMEGAs 6.0: N-component dark matter
micrOMEGAs is a numerical code to compute dark matter (DM) observables in generic extensions of the Standard Model of particle physics. We present a new version of micrOMEGAs that includes a generalization of the Boltzmann equations governing the DM cosmic abundance evolution which can be solved to compute the relic density of N-component DM. The direct and indirect detection rates in such scenarios take into account the relative contribution of each component such that constraints on the combi…

SARIS: Accelerating Stencil Computations on Energy-Efficient RISC-V Compute Clusters with Indirect Stream Registers
Paul Scheffler, Luca Colagrande, Luca Benini
https://arxiv.org/abs/2404.05303

SARIS: Accelerating Stencil Computations on Energy-Efficient RISC-V Compute Clusters with Indirect Stream Registers
Stencil codes are performance-critical in many compute-intensive applications, but suffer from significant address calculation and irregular memory access overheads. This work presents SARIS, a general and highly flexible methodology for stencil acceleration using register-mapped indirect streams. We demonstrate SARIS for various stencil codes on an eight-core RISC-V compute cluster with indirect stream registers, achieving significant speedups of 2.72x, near-ideal FPU utilizations of 81%, and …

This https://arxiv.org/abs/2203.00156 has been replaced.
link: https://scholar.google.com/scholar?q=a

Preemptive Motion Planning for Human-to-Robot Indirect Placement Handovers
As technology advances, the need for safe, efficient, and collaborative human-robot-teams has become increasingly important. One of the most fundamental collaborative tasks in any setting is the object handover. Human-to-robot handovers can take either of two approaches: (1) direct hand-to-hand or (2) indirect hand-to-placement-to-pick-up. The latter approach ensures minimal contact between the human and robot but can also result in increased idle time due to having to wait for the object to fi…

This https://arxiv.org/abs/2304.14587 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Smooth Indirect Solution Method for State-constrained Optimal Control Problems with Nonlinear Control-affine Systems
This paper proposes a new indirect solution method for solving state-constrained optimal control problems by revisiting the well-established optimal control theory and addressing the long-standing issue of discontinuous control and costate due to pure state inequality constraints. It is well-known that imposing pure state path constraints in optimal control problems introduces discontinuities in the control and costate, rendering the classical indirect solution methods ineffective to numericall…

Play Guessing Game with LLM: Indirect Jailbreak Attack with Implicit Clues
Zhiyuan Chang, Mingyang Li, Yi Liu, Junjie Wang, Qing Wang, Yang Liu
https://arxiv.org/abs/2402.09091

Play Guessing Game with LLM: Indirect Jailbreak Attack with Implicit Clues
With the development of LLMs, the security threats of LLMs are getting more and more attention. Numerous jailbreak attacks have been proposed to assess the security defense of LLMs. Current jailbreak attacks primarily utilize scenario camouflage techniques. However their explicitly mention of malicious intent will be easily recognized and defended by LLMs. In this paper, we propose an indirect jailbreak attack approach, Puzzler, which can bypass the LLM's defense strategy and obtain malicious r…

Convergence of reputations under indirect reciprocity
Bryce Morsky, Joshua B. Plotkin, Erol Ak\c{c}ay
https://arxiv.org/abs/2404.10121 https://

Convergence of reputations under indirect reciprocity
Previous research has shown how indirect reciprocity can promote cooperation through evolutionary game theoretic models. Most work in this field assumes a separation of time-scales: individuals' reputations equilibrate at a fast time scale for given frequencies of strategies while the strategies change slowly according to the replicator dynamics. Much of the previous research has focused on the behaviour and stability of equilibria for the replicator dynamics. Here we focus on the underlying re…

This https://arxiv.org/abs/2310.11635 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Break-up and Recovery of Harmony between Direct and Indirect Pathways in The Basal Ganglia; Huntington's Disease and Treatment
The basal ganglia (BG) in the brain exhibit diverse functions for motor, cognition, and emotion. Such BG functions could be made via competitive harmony between the two competing pathways, direct pathway (DP) (facilitating movement) and indirect pathway (IP) (suppressing movement). As a result of break-up of harmony between DP and IP, there appear pathological states with disorder for movement, cognition, and psychiatry. In this paper, we are concerned about the Huntington's disease (HD), which…

Ab initio tight-binding Models for Mono- and Bilayer Hexagonal Boron Nitride (h-BN)
Srivani Javvaji, Fengping Li, Jeil Jung
https://arxiv.org/abs/2404.13041

Ab initio tight-binding Models for Mono- and Bilayer Hexagonal Boron Nitride (h-BN)
We provide effective tight-binding models of monolayer and bilayer hexagonal boron nitride (h-BN) informed by ab initio density functional theory calculations within the local density approximation using maximally localized Wannier functions centered at the boron and nitrogen sites. An effective intra-layer tight-binding model with up to four distant hopping neighbors captures the band energies near the K-point and M-point in the Brillouin zone, including the indirect nature of the band gap for…

Evidence for an Outer Component in the Continuum Reverberation Mapping of Active Galactic Nuclei
Yuanzhe Jiang, Xue-Bing Wu, Qinchun Ma, Huapeng Gu, Yuhan Wen
https://arxiv.org/abs/2403.14091

Evidence for an Outer Component in the Continuum Reverberation Mapping of Active Galactic Nuclei
The continuum reverberation mapping is widely used in studying accretion disk of active galactic nuclei (AGN). While some indirect evidence and simulations indicated that the diffuse continuum, especially the strong Balmer continuum from the broad line region (BLR), may contribute to the continuum in the u/U band. Here, we present direct evidence for this contribution. In this work, we apply the ICCF-Cut method to continuum reverberation mapping to extract the possible diffuse continuum light c…

This https://arxiv.org/abs/2403.18009 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Signatures of magnetic braking in Class 0 protostars ? Exploring the gas kinematics in magnetized models of low-mass star formation
Only indirect evidence of the role of magnetic braking in regulating gravitational collapse and the formation of circumstellar disks was found from observational work, such as compact disk sizes and the launching of high-velocity collimated protostellar jets. More direct tests of the magnetic braking shaping the angular momentum (AM) of the gas in Class 0 protostars are crucially needed. In the present work we have used non-ideal MHD models of protostellar collapse and synthetic observations of…

This https://arxiv.org/abs/2208.09095 has been replaced.
link: https://scholar.google.com/scholar?q=a

Estimating and using information in inverse problems
In inverse problems, one attempts to infer spatially variable functions from indirect measurements of a system. To practitioners of inverse problems, the concept of "information" is familiar when discussing key questions such as which parts of the function can be inferred accurately and which cannot. For example, it is generally understood that we can identify system parameters accurately only close to detectors, or along ray paths between sources and detectors, because we have "the most inform…

Correspondence Research of the Most Probable Transition Paths between a Stochastic Interacting Particle System and its Mean Field Limit System
Jianyu Chen, Jianyu Hu, Zibo Wang, Ting Gao Jinqiao Duan
https://arxiv.org/abs/2404.07552

Correspondence Research of the Most Probable Transition Paths between a Stochastic Interacting Particle System and its Mean Field Limit System
This paper derived the indirect approximation theorem of the most probable transition pathway of a stochastic interacting particle system in the mean field sense. This paper studied the problem of indirect approximation of the most probable transition pathway of an interacting particle system (i.e., a high-dimensional stochastic dynamic system) and its mean field limit equation (McKean-Vlasov stochastic differential equation). This study is based on the Onsager-Machlup action functional, reform…

Leveraging the Context through Multi-Round Interactions for Jailbreaking Attacks
Yixin Cheng, Markos Georgopoulos, Volkan Cevher, Grigorios G. Chrysos
https://arxiv.org/abs/2402.09177

Leveraging the Context through Multi-Round Interactions for Jailbreaking Attacks
Large Language Models (LLMs) are susceptible to Jailbreaking attacks, which aim to extract harmful information by subtly modifying the attack query. As defense mechanisms evolve, directly obtaining harmful information becomes increasingly challenging for Jailbreaking attacks. In this work, inspired by human practices of indirect context to elicit harmful information, we focus on a new attack form called Contextual Interaction Attack. The idea relies on the autoregressive nature of the generatio…

This https://arxiv.org/abs/2311.14611 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Strong Constraints on Dark Matter Annihilation in Ursa Major III/UNIONS 1
Very recent work has identified a new satellite galaxy, Ursa Major III/UNIONS I, which is the faintest such system ever observed. Dynamical considerations indicate that if the system is in equilibrium, it is likely to be highly dark matter dominated. This, in combination with its proximity, predicts that it may be the preeminent dwarf spheroidal galaxy target for dark matter indirect detection searches. We utilize 15 years of Fermi-LAT data to search for $γ$-ray emission from Ursa Major III. F…

Effects of dislocation filtering layers on optical properties of third telecom window emitting InAs/InGaAlAs quantum dots grown on silicon substrates
Wojciech Rudno-Rudzi\'nski, Micha{\l} Gawe{\l}czyk, Pawe{\l} Podemski, Ramasubramanian Balasubramanian, Vitalii Sichkovskyi, Amnon J. Willinger, Gadi Eisenstein, Johann P. Reithmaier, Grzegorz S\k{e}k

Effects of dislocation filtering layers on optical properties of third telecom window emitting InAs/InGaAlAs quantum dots grown on silicon substrates
Integrating light emitters based on III-V materials with silicon-based electronics is crucial for further increase in data transfer rates in communication systems since the indirect bandgap of silicon prevents its direct use as a light source. We investigate here InAs/InGaAlAs quantum dot (QD) structures grown directly on 5° off-cut Si substrate and emitting light at 1.5 micrometers, compatible with established telecom platform. Using different dislocation defects filtering layers, exploiting …

Flipping Out: Role of Arginine in Hydrophobic Polymer Collapse
Jonathan W. P. Zajac, Praveen Muralikrishnan, Caryn L. Heldt, Sarah L. Perry, Sapna Sarupria
https://arxiv.org/abs/2403.11305

Flipping Out: Role of Arginine in Hydrophobic Polymer Collapse
Arginine has been a mainstay in biological formulation development for decades. To date, the way arginine modulates protein stability has been widely studied and debated. Here, we employed a hydrophobic polymer to decouple hydrophobic effects from other interactions relevant to protein folding. While existing hypotheses for the effects of arginine can generally be categorized as either direct or indirect, our results indicate that direct and indirect mechanisms of arginine co-exist and oppose e…

Optical absorption in tilted geometries as an indirect measure of longitudinal plasma waves in layered cuprates
Niccol\`o Sellati, Jacopo Fiore, Claudio Castellani, Lara Benfatto
https://arxiv.org/abs/2404.10519

Optical absorption in tilted geometries as an indirect measure of longitudinal plasma waves in layered cuprates
Electromagnetic waves propagating in a layered superconductor with arbitrary momentum with respect to the main crystallographic directions display an unavoidable mixing between longitudinal and transverse degrees of freedom. Here we show that this basic physical mechanism explains the emergence of a well-defined absorption peak in the in-plane optical conductivity for light propagating at small tilting angles with respect to the stacking direction in layered cuprates. More specifically, we show…

Lee-Wave Energy Sinks in Bottom-Intensified Flow: Reabsorption, Dissipation and Nonlinear Spectral Transfer
Yue Cynthia Wu, Eric Kunze, Amit Tandon, Amala Mahadevan
https://arxiv.org/abs/2403.04939

Lee-Wave Energy Sinks in Bottom-Intensified Flow: Reabsorption, Dissipation and Nonlinear Spectral Transfer
Idealized numerical simulation is used to explore energy sinks for lee waves trapped in their bottom-intensified generating flow. In addition to the loss to explicit dissipation and reabsorption predicted by linear wave action conservation, indirect dissipation due to a nonlinear forward cascade by parametric subharmonic instability represents a significant sink that substantially reduces reabsorption. The partition of lee-wave energy loss between reabsorption and (explicit plus indirect) dissi…

This https://arxiv.org/abs/2312.14197 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCL_…

Benchmarking and Defending Against Indirect Prompt Injection Attacks on Large Language Models
The integration of large language models (LLMs) with external content has enabled more up-to-date and wide-ranging applications of LLMs, such as Microsoft Copilot. However, this integration has also exposed LLMs to the risk of indirect prompt injection attacks, where an attacker can embed malicious instructions within external content, compromising LLM output and causing responses to deviate from user expectations. To investigate this important but underexplored issue, we introduce the first be…

Quantifying seasonal hydrogen storage demands under cost and market uptake uncertainties in energy system transformation pathways
Felix Frischmuth, Mattis Berghoff, Martin Braun, Philipp Haertel
https://arxiv.org/abs/2404.12974

Quantifying seasonal hydrogen storage demands under cost and market uptake uncertainties in energy system transformation pathways
Climate neutrality paradigms put electricity systems at the core of a clean energy supply. At the same time, indirect electrification, with a potential uptake of hydrogen or derived fuel economy, plays a crucial role in decarbonising the energy supply and industrial processes. Besides energy markets coordinating the transition, climate and energy policy targets require fundamental changes and expansions in the energy transmission, import, distribution, and storage infrastructures. While existin…

This https://arxiv.org/abs/2310.11304 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

QUEST-DMC superfluid $^3$He detector for sub-GeV dark matter
The focus of dark matter searches to date has been on Weakly Interacting Massive Particles (WIMPs) in the GeV/$c^2$-TeV/$c^2$ mass range. The direct, indirect and collider searches in this mass range have been extensive but ultimately unsuccessful, providing a strong motivation for widening the search outside this range. Here we describe a new concept for a dark matter experiment, employing superfluid $^3$He as a detector for dark matter that is close to the mass of the proton, of order 1 GeV/$…

Canada imposes additional ban on imports of Russian diamonds: https://benborges.xyz/2024/03/01/canada-imposes-additional.html

Enhancing Power Prediction of Photovoltaic Systems: Leveraging Dynamic Physical Model for Irradiance-to-Power Conversion
Baojie Li, Xin Chen, Anubhav Jain
https://arxiv.org/abs/2402.11897

Enhancing Power Prediction of Photovoltaic Systems: Leveraging Dynamic Physical Model for Irradiance-to-Power Conversion
Power prediction is crucial to the efficiency and reliability of Photovoltaic (PV) systems. For the model-chain-based (also named indirect or physical) power prediction, the conversion of ground environmental data (plane-of-array irradiance and module temperature) to the output power is a fundamental step, commonly accomplished through physical modeling. The core of the physical model lies in the parameters. However, traditional parameter estimation either relies on datasheet information that c…

A Search for Magnetized Quark Nuggets (MQNs), a Candidate for Dark Matter, Accumulating in Iron Ore
J. Pace VanDevender, T. Sloan, Michael Glissman
https://arxiv.org/abs/2402.08163

A Search for Magnetized Quark Nuggets (MQNs), a Candidate for Dark Matter, Accumulating in Iron Ore
A search has been carried out for Magnetized Quark Nuggets (MQNs) accumulating in iron ore over geologic time. MQNs, which are theoretically consistent with the Standard Models of Physics and of Cosmology, have been suggested as dark-matter candidates. Indirect evidence of MQNs has been previously inferred from observations of magnetars and of non-meteorite impact craters. It is shown in this paper that MQNs can accumulate in taconite (iron ore) and be transferred into ferromagnetic rod-mill li…

Evidence for an Outer Component in the Continuum Reverberation Mapping of Active Galactic Nuclei
Yuanzhe Jiang, Xue-Bing Wu, Qinchun Ma, Huapeng Gu, Yuhan Wen
https://arxiv.org/abs/2403.14091

Evidence for an Outer Component in the Continuum Reverberation Mapping of Active Galactic Nuclei
The continuum reverberation mapping is widely used in studying accretion disk of active galactic nuclei (AGN). While some indirect evidence and simulations indicated that the diffuse continuum, especially the strong Balmer continuum from the broad line region (BLR), may contribute to the continuum in the u/U band. Here, we present direct evidence for this contribution. In this work, we apply the ICCF-Cut method to continuum reverberation mapping to extract the possible diffuse continuum light c…

This https://arxiv.org/abs/2311.12487 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Quantum Gravity Effects on Fermionic Dark Matter and Gravitational Waves
We explore the phenomenological consequences of breaking discrete global symmetries in quantum gravity (QG). We extend a previous scenario where discrete global symmetries are responsible for scalar dark matter (DM) and domain walls (DWs), to the case of fermionic DM, considered as a feebly interacting massive particle, which achieves the correct DM relic density via the freeze-in mechanism. Due to the mixing between DM and the standard model neutrinos, various indirect DM detection methods can…

This https://arxiv.org/abs/2311.14611 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Strong Constraints on Dark Matter Annihilation in Ursa Major III/UNIONS 1
Very recent work has identified a new satellite galaxy, Ursa Major III/UNIONS I, which is the faintest such system ever observed. Dynamical considerations indicate that if the system is in equilibrium, it is likely to be highly dark matter dominated. This, in combination with its proximity, predicts that it may be the preeminent dwarf spheroidal galaxy target for dark matter indirect detection searches. We utilize 15 years of Fermi-LAT data to search for $γ$-ray emission from Ursa Major III. F…

This https://arxiv.org/abs/2306.16506 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Equivariant Neural Networks for Indirect Measurements
In recent years, deep learning techniques have shown great success in various tasks related to inverse problems, where a target quantity of interest can only be observed through indirect measurements by a forward operator. Common approaches apply deep neural networks in a post-processing step to the reconstructions obtained by classical reconstruction methods. However, the latter methods can be computationally expensive and introduce artifacts that are not present in the measured data and, in t…

This https://arxiv.org/abs/2312.14197 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCL_…

Benchmarking and Defending Against Indirect Prompt Injection Attacks on Large Language Models
The integration of large language models (LLMs) with external content has enabled more up-to-date and wide-ranging applications of LLMs, such as Microsoft Copilot. However, this integration has also exposed LLMs to the risk of indirect prompt injection attacks, where an attacker can embed malicious instructions within external content, compromising LLM output and causing responses to deviate from user expectations. To investigate this important but underexplored issue, we introduce the first be…

Standardization of chemically selective atomic force microscopy for metal-oxide surfaces
Philipp Wiesener, Stefan F\"orster, Milena Merkel, Bertram Schulze Lammers, Harald Fuchs, Saeed Amirjalayer, Harry M\"onig
https://arxiv.org/abs/2402.11045

Standardization of chemically selective atomic force microscopy for metal-oxide surfaces
The complex atomic structures and defects of metal-oxide surfaces are vital for a variety of applications in material science and chemistry. While scanning probe microscopy allows accessing atomic-scale structures in real space, elemental discrimination and defect characterization usually rely on indirect assumptions and extensive theoretical modelling. By investigating a variety of different sample systems with increasing structural complexity and inherent defects, we demonstrate that nonconta…

Global existence and boundedness of solutions to a fully parabolic chemotaxis system with indirect signal production in $\mathbb{R}^4$
Tatsuya Hosono (LAMA), Philippe Lauren\c{c}ot (LAMA)
https://arxiv.org/abs/2404.01724

Global existence and boundedness of solutions to a fully parabolic chemotaxis system with indirect signal production in $\mathbb{R}^4$
Global existence and boundedness of solutions to the Cauchy problem for the four dimensional fully parabolic chemotaxis system with indirect signal production are studied. We prove that solutions with initial mass below $(8π)^2$ exist globally in time. This value $(8π)^2$ is known as the four dimensional threshold value of the initial mass determining whether blow-up of solutions occurs or not. Furthermore, some condition on the initial mass guaranteeing that the solution remains uniformly bo…

Quantum trajectory of the one atom maser
Tristan Benoist, Laurent Bruneau, Cl\'ement Pellegrini
https://arxiv.org/abs/2403.20094 https://

Quantum trajectory of the one atom maser
The evolution of a quantum system undergoing repeated indirect measurements naturally leads to a Markov chain on the set of states which is called a quantum trajectory. In this paper we consider a specific model of such a quantum trajectory associated to the one-atom maser model. It describes the evolution of one mode of the quantized electromagnetic field in a cavity interacting with two-level atoms. When the system is non-resonant we prove that this Markov chain admits a unique invariant prob…

Optical properties and dynamics of direct and spatially and momentum indirect excitons in AlGaAs/AlAs quantum wells
D\k{a}br\'owka Biega\'nska, Maciej Pieczarka, Krzysztof Ryczko, Maciej Kubisa, Sebastian Klembt, Sven H\"ofling, Christian Schneider, Marcin Syperek
https://arxiv.org/abs/2404.01938

Optical properties and dynamics of direct and spatially and momentum indirect excitons in AlGaAs/AlAs quantum wells
We present an experimental study on optical properties and dynamics of direct and spatially and momentum indirect excitons in AlGaAs/AlAs quantum wells near the crossover between $\varGamma$- and $X$-valley confined electron states. The time-integrated photoluminescence experiment at $T=$4.8 K revealed three simultaneously observed optical transitions resulting from (a) a direct exciton recombination, involving an electron and a hole states both located in the $\varGamma$-valley in the quantum …

Validation of hydrodynamic and kinetic simulations with a plasma interpenetration ICF hohlraum experiment
Steven E. Anderson, Luis Chac\'on, Andrei N. Simakov, Brian M. Haines, David S. Montgomery
https://arxiv.org/abs/2403.04967

Validation of hydrodynamic and kinetic simulations with a plasma interpenetration ICF hohlraum experiment
We report on simulations of counter-propagating laser-produced plasmas in an inertial confinement fusion (ICF) hohlraum surrogate, aiming to replicate observations reported by Le Pape et. al in recent work. The conditions of the colliding plasmas are relevant to ICF hohlraums used for indirect-drive ignition, and are obtained both with and without low-density He-gas fill. We compare experimental diagnostics to outputs from simulations using the 1D-2V Vlasov-Fokker-Planck kinetic code iFP and th…

A VLBA-uGMRT search for candidate binary black holes: Study of six X-shaped radio galaxies with double-peaked emission lines
Biny Sebastian, Anderson Caproni, Preeti Kharb, A. J. Nayana, Arshi Ali, K. Rubinur, Christopher P. O'Dea, Stefi Baum, Sumana Nandi
https://arxiv.org/abs/2402.12521

A VLBA-uGMRT search for candidate binary black holes: Study of six X-shaped radio galaxies with double-peaked emission lines
Identifying methods to discover dual AGN has proven to be challenging. Several indirect tracers have been explored in the literature, including X/S-shaped radio morphologies and double-peaked (DP) emission lines in the optical spectra. However, the detection rates of confirmed dual AGN candidates from the individual methods remain extremely small. We search for binary black holes in a sample of six sources that exhibit both X-shaped radio morphology and DP emission lines using the VLBA. Three o…

This https://arxiv.org/abs/2401.08785 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Dark showers from Z-dark Z' mixing
We discuss dark shower signals at the LHC from a dark QCD sector, containing GeV-scale dark pions. The portal with the Standard Model is given by the mixing of the Z boson with a dark Z' coupled to the dark quarks. Both mass and kinetic mixings are included, but the mass mixing is the essential ingredient, as it is the one mediating visible decays of the long-lived dark pions. We focus especially on the possibility that the dark Z' is lighter than the Z. Indirect constraints are dominated by el…

The Reflection Coefficient of a Reflectionless Kink
Jarah Evslin, Hui Liu
https://arxiv.org/abs/2402.17968 https://arxiv.org/pdf/2402…

The Reflection Coefficient of a Reflectionless Kink
Classically, reflectionless kinks transmit all incident radiation. Recently, we have used an analyticity argument together with a solution of the Lippmann-Schwinger equation to write down the leading quantum correction to the reflection probability. The argument was fast but rather indirect. In the present paper, we calculate the reflection coefficient and probability by methodically grinding through the Schrodinger picture time evolution. We find the same answer. This answer contains contribut…

Change of Measure for Bayesian Field Inversion with Hierarchical Hyperparameters Sampling
Nad\`ege Polette (CEA/DAM), Olivier Le Ma\^itre (PLATON, CMAP), Pierre Sochala (CEA/DAM), Alexandrine Gesret
https://arxiv.org/abs/2404.12688

Change of Measure for Bayesian Field Inversion with Hierarchical Hyperparameters Sampling
This paper proposes an effective treatment of hyperparameters in the Bayesian inference of a scalar field from indirect observations. Obtaining the joint posterior distribution of the field and its hyperparameters is challenging. The infinite dimensionality of the field requires a finite parametrization that usually involves hyperparameters to reflect the limited prior knowledge. In the present work, we consider a Karhunen-Lo{è}ve (KL) decomposition for the random field and hyperparameters to …

Estimating HANK with Micro Data
Man Chon Iao, Yatheesan J. Selvakumar
https://arxiv.org/abs/2402.11379 https://arxiv.org/pdf/2402.113…

Estimating HANK with Micro Data
We propose an indirect inference strategy for estimating heterogeneous-agent business cycle models with micro data. At its heart is a first-order vector autoregression that is grounded in linear filtering theory as the cross-section grows large. The result is a fast, simple and robust algorithm for computing an approximate likelihood that can be easily paired with standard classical or Bayesian methods. Importantly, our method is compatible with the popular sequence-space solution method, unlik…

Evolution of rotating massive stars adopting a newer, self-consistent wind prescription at SMC metallicity
Alex Camilo Gormaz-Matamala, Jorge Cuadra, Sylvia Ekstr\"om, Georges Meynet, Michel Cur\'e, Krzysztof Belczynski
https://arxiv.org/abs/2404.07570

Evolution of rotating massive stars adopting a newer, self-consistent wind prescription at SMC metallicity
We use Geneva-evolution-code to run evolutionary tracks for stellar masses ranging from $20$ to $85$ $M_\odot$ at SMC metallicity ($Z=0.002$). We upgrade the recipe for stellar winds by adopting our self-consistent m-CAK prescription, which reduces the value of mass-loss rate by a factor between 2 and 6 depending on the mass range. The impact of our new winds is wide, and it can be divided between direct and indirect impact. For the most massive models ($60$ and $85$ $M_\odot$) with $\dot M\g…

Dynamical pressure boundary condition for weakly-compressible smoothed particle hydrodynamics
Shuoguo Zhang, Yu Fan, Dong Wu, Chi Zhang, Xiangyu Hu
https://arxiv.org/abs/2403.09485

Dynamical pressure boundary condition for weakly-compressible smoothed particle hydrodynamics
This paper introduces a novel dynamical pressure boundary condition for weakly-compressible smoothed particle hydrodynamics (WCSPH). Unlike previous methods that rely on indirect approaches or ghost particles, our method integrates the dynamical boundary pressure directly into the SPH approximation of the pressure gradient on near-boundary particles. Additionally, we develop a meshfree bidirectional in-/outflow buffer by periodically relabelling buffer particles at each time step, a concept tha…

Standardization of chemically selective atomic force microscopy for metal-oxide surfaces
Philipp Wiesener, Stefan F\"orster, Milena Merkel, Bertram Schulze Lammers, Harald Fuchs, Saeed Amirjalayer, Harry M\"onig
https://arxiv.org/abs/2402.11045

Standardization of chemically selective atomic force microscopy for metal-oxide surfaces
The complex atomic structures and defects of metal-oxide surfaces are vital for a variety of applications in material science and chemistry. While scanning probe microscopy allows accessing atomic-scale structures in real space, elemental discrimination and defect characterization usually rely on indirect assumptions and extensive theoretical modelling. By investigating a variety of different sample systems with increasing structural complexity and inherent defects, we demonstrate that nonconta…

This https://arxiv.org/abs/2309.12540 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Quantifying Harmony between Direct and Indirect Pathways in The Basal Ganglia; Healthy and Parkinsonian States
The basal ganglia (BG) show a variety of functions for motor and cognition. There are two competitive pathways in the BG; direct pathway (DP) which facilitates movement and indirect pathway (IP) which suppresses movement. It is well known that diverse functions of the BG may be made through "balance" between DP and IP. But, to the best of our knowledge, so far no quantitative analysis for such balance was done. In this paper, as a first time, we introduce the competition degree ${\cal C}_d$ bet…

First Result for Dark Matter Search by WINERED
Wen Yin, Taiki Bessho, Yuji Ikeda, Hitomi Kobayashi, Daisuke Taniguchi, Hiroaki Sameshima, Noriyuki Matsunaga, Shogo Otsubo, Yuki Sarugaku, Tomomi Takeuchi, Haruki Kato, Satoshi Hamano, Hideyo Kawakita
https://arxiv.org/abs/2402.07976

First Result for Dark Matter Search by WINERED
The identity of dark matter has been a mystery in astronomy, cosmology, and particle theory for about a century. Bessho, Ikeda, and Yin (2022), three of the current authors, proposed using the state-of-the-art infrared spectrographs, including WINERED at $6.5$m Magellan Clay telescope and NIRSpec at James Webb Space Telescope, as efficient detectors for the indirect detection of dark matter with the mass around eV by measuring the line photons from the dark matter two body decays. Applying this…

This https://arxiv.org/abs/2309.01721 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

Direct and Indirect Treatment Effects in the Presence of Semi-Competing Risks
Semi-competing risks refer to the phenomenon that the terminal event (such as death) can censor the non-terminal event (such as disease progression) but not vice versa. The treatment effect on the terminal event can be delivered either directly following the treatment or indirectly through the non-terminal event. We consider two strategies to decompose the total effect into a direct effect and an indirect effect under the framework of mediation analysis in completely randomized experiments by a…

This https://arxiv.org/abs/2303.17961 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Quantum Theory of Dark Matter Scattering
Dark matter self-scattering is one of key ingredients for small-scale structure of the Universe, while dark matter annihilation is important for the indirect measurements. There is a strong correlation between the velocity-dependent self-scattering cross section and the Sommerfeld enhancement factor for the dark matter annihilation cross section. In this study, we formulate a direct relation between them by the use of Watson's (initial state/final state) theorem and Omnès solution, and our for…

Pandora: Jailbreak GPTs by Retrieval Augmented Generation Poisoning
Gelei Deng, Yi Liu, Kailong Wang, Yuekang Li, Tianwei Zhang, Yang Liu
https://arxiv.org/abs/2402.08416

Pandora: Jailbreak GPTs by Retrieval Augmented Generation Poisoning
Large Language Models~(LLMs) have gained immense popularity and are being increasingly applied in various domains. Consequently, ensuring the security of these models is of paramount importance. Jailbreak attacks, which manipulate LLMs to generate malicious content, are recognized as a significant vulnerability. While existing research has predominantly focused on direct jailbreak attacks on LLMs, there has been limited exploration of indirect methods. The integration of various plugins into LL…

This https://arxiv.org/abs/2304.08526 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The Physics of Indirect Estimators of Lyman Continuum Escape and their Application to High-Redshift JWST Galaxies
Reliable indirect diagnostics of LyC photon escape from galaxies are required to understand which sources were the dominant contributors to reionization. While multiple LyC escape fraction ($f_{\rm esc}$) indicators have been proposed to trace favourable conditions for LyC leakage from the interstellar medium of low-redshift ''analog'' galaxies, it remains unclear whether these are applicable at high redshifts where LyC emission cannot be directly observed. Using a library of 14,120 mock spectr…

This https://arxiv.org/abs/2308.05158 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Indirect Cooling of Weakly Coupled Trapped-Ion Mechanical Oscillators
Cooling the motion of trapped ions to near the quantum ground state is crucial for many applications in quantum information processing and quantum metrology. However, certain motional modes of trapped-ion crystals can be difficult to cool due to weak or zero interaction between the modes and the cooling radiation, typically laser beams. We overcome this challenge by coupling a mode with weak cooling radiation interaction to one with strong cooling radiation interaction using parametric modulati…

Quantum trajectory of the one atom maser
Tristan Benoist, Laurent Bruneau, Cl\'ement Pellegrini
https://arxiv.org/abs/2403.20094 https://

Quantum trajectory of the one atom maser
The evolution of a quantum system undergoing repeated indirect measurements naturally leads to a Markov chain on the set of states which is called a quantum trajectory. In this paper we consider a specific model of such a quantum trajectory associated to the one-atom maser model. It describes the evolution of one mode of the quantized electromagnetic field in a cavity interacting with two-level atoms. When the system is non-resonant we prove that this Markov chain admits a unique invariant prob…

This https://arxiv.org/abs/2309.11408 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Indirect Swarm Control: Characterization and Analysis of Emergent Swarm Behaviors
Emergence and emergent behaviors are often defined as cases where changes in local interactions between agents at a lower level effectively changes what occurs in the higher level of the system (i.e., the whole swarm) and its properties. However, the manner in which these collective emergent behaviors self-organize is less understood. The focus of this paper is in presenting a new framework for characterizing the conditions that lead to different macrostates and how to predict/analyze their mac…

Investigation of Spin-Pumping and -Transport in the Ni80Fe20/Pt/Co Asymmetric Trilayer
Shilpa Samdani, Yaqi Rong, Birte Coester, Amit Kumar Shukla, Lew Wen Siang, Yumeng Yang, Rajdeep Singh Rawat
https://arxiv.org/abs/2404.12307

Investigation of Spin-Pumping and -Transport in the Ni80Fe20/Pt/Co Asymmetric Trilayer
FM1/NM/FM2 trilayers have garnered considerable attention because of their potential in spintronic applications. A thorough investigation of the spin transport properties of these trilayers is therefore important. Asymmetric trilayers, particularly those including Platinum (Pt) as a spacer are less explored. Pt mediates exchange coupling between the two FM layers and thus offers a unique platform to investigate the spin-transport properties under indirect exchange coupling conditions through th…

Learning Sequence Attractors in Recurrent Networks with Hidden Neurons
Yao Lu, Si Wu
https://arxiv.org/abs/2404.02729 https://arxiv.o…

Learning Sequence Attractors in Recurrent Networks with Hidden Neurons
The brain is targeted for processing temporal sequence information. It remains largely unclear how the brain learns to store and retrieve sequence memories. Here, we study how recurrent networks of binary neurons learn sequence attractors to store predefined pattern sequences and retrieve them robustly. We show that to store arbitrary pattern sequences, it is necessary for the network to include hidden neurons even though their role in displaying sequence memories is indirect. We develop a loca…

This https://arxiv.org/abs/2309.01721 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

Direct and Indirect Treatment Effects in the Presence of Semi-Competing Risks
Semi-competing risks refer to the phenomenon that the terminal event (such as death) can censor the non-terminal event (such as disease progression) but not vice versa. The treatment effect on the terminal event can be delivered either directly following the treatment or indirectly through the non-terminal event. We consider two strategies to decompose the total effect into a direct effect and an indirect effect under the framework of mediation analysis in completely randomized experiments by a…

This https://arxiv.org/abs/2112.11138 has been replaced.
link: https://scholar.google.com/scholar?q=a

NAJADS: a self-contained framework for the direct determination of astrophysical J-factors
Cosmological simulations play a pivotal role in understanding the properties of the dark matter (DM) distribution in both galactic and galaxy-cluster environments. The characterization of DM structures is crucial for informing indirect DM searches, aiming at the detection of the annihilation (or decay) products of DM particles. A fundamental quantity in these analyses is the astrophysical J-factor. In the DM phenomenology community, J-factors are typically computed through the semi-analytical m…

This https://arxiv.org/abs/2309.11408 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Indirect Swarm Control: Characterization and Analysis of Emergent Swarm Behaviors
Emergence and emergent behaviors are often defined as cases where changes in local interactions between agents at a lower level effectively changes what occurs in the higher level of the system (i.e., the whole swarm) and its properties. However, the manner in which these collective emergent behaviors self-organize is less understood. The focus of this paper is in presenting a new framework for characterizing the conditions that lead to different macrostates and how to predict/analyze their mac…

Direct, simple, and efficient computation of all components of the virtual-casing magnetic field in axisymmetric geometries with Kapur-Rokhlin quadrature
Evan Toler, Antoine Cerfon, Dhairya Malhotra
https://arxiv.org/abs/2404.02799

Direct, simple, and efficient computation of all components of the virtual-casing magnetic field in axisymmetric geometries with Kapur-Rokhlin quadrature
In a recent publication (Toler et al. 2023), we demonstrated that for axisymmetric geometries, the Kapur-Rokhlin quadrature rule provided an efficient and high-order accurate method for computing the normal component, on the plasma surface, of the magnetic field due to the toroidal current flowing in the plasma, via the virtual-casing principle. The calculation was indirect, as it required the prior computation of the magnetic vector potential from the virtual-casing principle, followed by the …

This https://arxiv.org/abs/2309.01721 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

Direct and Indirect Treatment Effects in the Presence of Semi-Competing Risks
Semi-competing risks refer to the phenomenon that the terminal event (such as death) can censor the non-terminal event (such as disease progression) but not vice versa. The treatment effect on the terminal event can be delivered either directly following the treatment or indirectly through the non-terminal event. We consider two strategies to decompose the total effect into a direct effect and an indirect effect under the framework of mediation analysis in completely randomized experiments by a…

This https://arxiv.org/abs/2308.14594 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Indirect detection of dark matter with (pseudo)-scalar interactions
Indirect detection is one of the most powerful methods to search for annihilating dark matter. In this work, we investigate the impact of non-perturbative effects in the indirect detection of dark matter. For this purpose we utilize a minimal model consisting of a fermionic dark matter candidate in the TeV mass range that interacts via scalar- and pseudo-scalar interactions with a massive scalar mediator mixing with the Higgs. The scalar interaction induces an attractive Yukawa potential betwee…

Probing AGN jet precession with LISA
Nathan Steinle, Davide Gerosa, Martin G. H. Krause
https://arxiv.org/abs/2403.00066 https://arxi…

Probing AGN jet precession with LISA
The precession of astrophysical jets produced by active-galactic nuclei is likely related to the dynamics of the accretion disks surrounding the central supermassive black holes (BHs) from which jets are launched. The two main mechanisms that can drive jet precession arise from Lense-Thirring precession and tidal torquing. These can explain direct and indirect observations of precessing jets; however, such explanations often utilize crude approximations of the disk evolution and observing jet p…

Fractionation in young cores: Direct determinations of nitrogen and carbon fractionation in HCN
S. S. Jensen, S. Spezzano, P. Caselli, O. Sipil\"a, E. Redaelli, K. Giers, J. Ferrer Asensio
https://arxiv.org/abs/2403.04408

Fractionation in young cores: Direct determinations of nitrogen and carbon fractionation in HCN
We aim to determine the $^{14}$N/$^{15}$N and $^{12}$C/$^{13}$C ratios for HCN in six starless and prestellar cores and compare the results between the direct method using radiative transfer modeling and the indirect double isotope method assuming a fixed $^{12}$C/$^{13}$C ratio. We present IRAM 30m observations of the HCN 1-0, HCN 3-2, HC15N 1-0 and H13CN 1-0 transitions toward six embedded cores. The ${}^{14}$N/${}^{15}$N ratio was derived using both the indirect double isotope method and dir…

Signatures of magnetic braking in Class 0 protostars ? Exploring the gas kinematics in magnetized models of low-mass star formation
N. A\~nez-Lopez, U. Lebreuilly, A. Maury, P. Hennebelle
https://arxiv.org/abs/2403.18009

Signatures of magnetic braking in Class 0 protostars ? Exploring the gas kinematics in magnetized models of low-mass star formation
Only indirect evidence of the role of magnetic braking in regulating gravitational collapse and the formation of circumstellar disks was found from observational work, such as compact disk sizes and the launching of high-velocity collimated protostellar jets. More direct tests of the magnetic braking shaping the angular momentum (AM) of the gas in Class 0 protostars are crucially needed. In the present work we have used non-ideal MHD models of protostellar collapse and synthetic observations of…

This https://arxiv.org/abs/2307.07403 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Robust bounds on ALP dark matter from dwarf spheroidal galaxies in the optical MUSE-Faint survey
Nearby dwarf spheroidal galaxies are ideal targets in the search for indirect dark matter (DM) signals. In this work, we analyze MUSE spectroscopic observations of a sample of five galaxies, composed of both classical and ultra-faint dwarf spheroidals. The goal is to search for radiative decays of axion-like particles (ALPs) in the mass range of 2.7-5.3 eV. After taking into account the uncertainties associated with the DM spatial distribution in the galaxies, we derive robust bounds on the eff…

Direct, simple, and efficient computation of all components of the virtual-casing magnetic field in axisymmetric geometries with Kapur-Rokhlin quadrature
Evan Toler, Antoine Cerfon, Dhairya Malhotra
https://arxiv.org/abs/2404.02799

Direct, simple, and efficient computation of all components of the virtual-casing magnetic field in axisymmetric geometries with Kapur-Rokhlin quadrature
In a recent publication (Toler et al. 2023), we demonstrated that for axisymmetric geometries, the Kapur-Rokhlin quadrature rule provided an efficient and high-order accurate method for computing the normal component, on the plasma surface, of the magnetic field due to the toroidal current flowing in the plasma, via the virtual-casing principle. The calculation was indirect, as it required the prior computation of the magnetic vector potential from the virtual-casing principle, followed by the …

This https://arxiv.org/abs/2404.05634 has been replaced.
initial toot: https://mastoxiv.page/@a…

Why does silicon have an indirect band gap?
Density functional theory (DFT) is a powerful tool for predicting the electronic band structures of functional materials. However, it is often difficult to intuit how major band structure features$-$such as band gap magnitude, location of band extrema, effective masses, etc.$-$arise from the underlying crystal chemistry of a material. Band structure is represented in reciprocal space, but arises from the orbital and bonding interactions between atoms in real space. Here, we present a conceptual…

This https://arxiv.org/abs/2307.07403 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Robust bounds on ALP dark matter from dwarf spheroidal galaxies in the optical MUSE-Faint survey
Nearby dwarf spheroidal galaxies are ideal targets in the search for indirect dark matter (DM) signals. In this work, we analyze MUSE spectroscopic observations of a sample of five galaxies, composed of both classical and ultra-faint dwarf spheroidals. The goal is to search for radiative decays of axion-like particles (ALPs) in the mass range of 2.7-5.3 eV. After taking into account the uncertainties associated with the DM spatial distribution in the galaxies, we derive robust bounds on the eff…

Gravitational Wave Probe of Gravitational Dark Matter from Preheating
Ruopeng Zhang, Sibo Zheng
https://arxiv.org/abs/2403.09089 https://

Gravitational Wave Probe of Gravitational Dark Matter from Preheating
Following our previous studies on gravitational dark matter (GDM) production in the early Universe of preheating,we forecast high-frequency gravitational wave (GW) spectra as the indirect probe of such GDM. We use proper lattice simulations to handle the resonance,and to solve the GW equation of motion with resonance induced scalar field excitations as the source term.Our numerical results show that the Higgs scalar excitations in the Higgs preheating model give rise to magnitudes of GW energy …

First-principles Study of Carrier Mobility in MX (M=Sn, Pb; X=P, As) Monolayers
Bo Zhang, Wenhui Wan, Yong Liu, Yanfeng Ge
https://arxiv.org/abs/2403.06379

First-principles Study of Carrier Mobility in MX (M=Sn, Pb; X=P, As) Monolayers
Compounds from groups IV and V have been the focus of recent research due to their impressive physical characteristics and structural stability. In this study, the MX monolayers (M=Sn, Pb; N=P, As) are investigated with first-principles calculations based on Boltzmann transport theory. The results show that SnP, SnAs, and PbAs all exhibit indirect band gaps, whereas PbP is the only semiconductor with a direct band gap. One important finding is that intravalley scattering has a significant impac…

CHEX-MATE : turbulence in the ICM from X-ray surface brightness fluctuations
Simon Dupourqu\'e, Nicolas Clerc, Etienne Pointecouteau, Dominique Eckert, Massimo Gaspari, Lorenzo Lovisari, Gabriel W. Pratt, Elena Rasia, Mariachiara Rossetti, Franco Vazza, Marco Balboni, Iacopo Bartalucci, Herv\'e Bourdin, Federico De Luca, Marco De Petris, Stefano Ettori, Simona Ghizzardi, Pasquale Mazzotta

CHEX-MATE : turbulence in the ICM from X-ray surface brightness fluctuations
The intra-cluster medium is prone to turbulent motion that will contribute to the non-thermal heating of the gas, complicating the use of galaxy clusters as cosmological probes. Indirect approaches can estimate the intensity and structure of turbulent motions by studying the associated fluctuations in gas density and X-ray surface brightness. In this work, we want to constrain the gas density fluctuations at work in the CHEX-MATE sample to obtain a detailed view of their properties in a large p…

First-principles Study of Carrier Mobility in MX (M=Sn, Pb; X=P, As) Monolayers
Bo Zhang, Wenhui Wan, Yong Liu, Yanfeng Ge
https://arxiv.org/abs/2403.06379

First-principles Study of Carrier Mobility in MX (M=Sn, Pb; X=P, As) Monolayers
Compounds from groups IV and V have been the focus of recent research due to their impressive physical characteristics and structural stability. In this study, the MX monolayers (M=Sn, Pb; N=P, As) are investigated with first-principles calculations based on Boltzmann transport theory. The results show that SnP, SnAs, and PbAs all exhibit indirect band gaps, whereas PbP is the only semiconductor with a direct band gap. One important finding is that intravalley scattering has a significant impac…

This https://arxiv.org/abs/2307.11871 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Using Axion Miniclusters to Disentangle the Axion-photon Coupling and the Dark Matter Density
Dark matter direct (and indirect) detection experiments usually can only determine a specific combination of a power of the coupling and the dark matter density. This is also true for axion haloscopes which are sensitive to the product $g^{2}_{aγγ}ρ_{\rm DM}$, the combination of axion-photon coupling squared and the dark matter density. In this note we show, that in the lucky case when we intersect with a so-called axion minicluster of a suitable size, we can utilize the spectral information…

This https://arxiv.org/abs/2308.09665 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

EPOCHS IX. When cosmic dawn breaks: Evidence for evolved stellar populations in $7 < z < 12$ galaxies from PEARLS GTO and public NIRCam imaging
The presence of evolved stars in high-redshift galaxies can place valuable indirect constraints on the onset of star formation in the Universe. Thus we use PEARLS GTO and public NIRCam photometric data to search for Balmer-break candidate galaxies at $7 < z < 12$. We find that our Balmer-break candidates at $z \sim 10.5$ tend to be older (115 Myr), have lower inferred [O III] + H$β$ emission line equivalent widths (120 Å), have lower specific star formation rates (6 Gyr$^{-1}$) and redder UV …

This https://arxiv.org/abs/2307.11871 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Using Axion Miniclusters to Disentangle the Axion-photon Coupling and the Dark Matter Density
Dark matter direct (and indirect) detection experiments usually can only determine a specific combination of a power of the coupling and the dark matter density. This is also true for axion haloscopes which are sensitive to the product $g^{2}_{aγγ}ρ_{\rm DM}$, the combination of axion-photon coupling squared and the dark matter density. In this note we show, that in the lucky case when we intersect with a so-called axion minicluster of a suitable size, we can utilize the spectral information…

This https://arxiv.org/abs/2310.07117 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Power spectrum estimation methods on intracluster medium surface brightness fluctuations
Accurate estimation of galaxy cluster masses is a central problem in cosmology. Turbulence is believed to introduce significant deviations from the hydrostatic mass estimates. Estimation of turbulence properties is complicated by projection of the 3D cluster onto the 2D plane of the sky, and is commonly done in the form of indirect probes from fluctuations in the X-ray surface brightness and Sunyaev-Zeldovich effect maps. In this paper, we address this problem using simulations. We examine diff…

This https://arxiv.org/abs/2401.16469 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

SAGAbg I: A Near-Unity Mass Loading Factor in Low-Mass Galaxies via their Low-Redshift Evolution in Stellar Mass, Oxygen Abundance, and Star Formation Rate
Measuring the relation between star formation and galactic winds is observationally difficult. In this work we make an indirect measurement of the mass loading factor (the ratio between mass outflow rate and star formation rate) in low-mass galaxies using a differential approach to modeling the low-redshift evolution of the star-forming main sequence and mass-metallicity relation. We use the SAGA (Satellites Around Galactic Analogs) background galaxies, those spectra observed by the SAGA survey…

This https://arxiv.org/abs/2309.16233 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Hunting for sterile neutrino with future collider signatures
We study the feasibility to observe sterile neutrino at the high energy colliders with direct production channels through $e^+e^-$, $ep$ collision, and indirect production channels through decays of heavy meson, baryon and Higgs. For $e^+e^-$ collision, the $e^+e^-\to\barν_e N$ channel is explored with new signal selection method which tends to be efficient for light $m_N$, the constraints of active-sterile mixing $|U_{eN}|^2$ at the SuperKEKB, CEPC and ILC are expected to reach bett…

This https://arxiv.org/abs/2310.17070 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Effective field theory of particle mixing
We introduce an effective field theory to study \emph{indirect} mixing of two fields induced by their couplings to a common decay channel in a medium. The extension of the method of Lee, Oehme and Yang, the cornerstone of analysis of CP violation in flavored mesons, to include mixing of particles with different masses provides a guide to and benchmark for the effective field theory. The analysis reveals subtle caveats in the description of mixing in terms of the widely used non-Hermitian effect…

ToMCCA: A Toy Monte Carlo Coalescence Afterburner
Maximilian Mahlein, Chiara Pinto, Laura Fabbietti
https://arxiv.org/abs/2404.03352 https://

ToMCCA: A Toy Monte Carlo Coalescence Afterburner
The study of antinuclei in cosmic rays provides a unique opportunity to probe physics beyond the Standard Model. Antinuclei in our Galaxy may stem either from annihilation or decay of dark matter, or from collisions of cosmic rays with the interstellar medium, which constitute the background of indirect dark matter searches. Understanding the formation mechanism of (anti)nuclei is crucial for setting limits on their production in space. Coalescence models, which describe the formation of light …

This https://arxiv.org/abs/2308.04141 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Intermediate Charge-Breaking Phases and Symmetry Non-Restoration in the 2-Higgs-Doublet Model
The Higgs potentials of extended Higgs sectors exhibit a complex and interesting vacuum structure. When travelling back in time, i.e. going to higher temperatures, the structure may change and exhibit interesting phase patterns and sequences of phases related to the respective minima of the potential. The investigation of the vacuum structure can give us indirect insights in beyond-Standard-Model physics and the evolution of the Universe. In this paper, we investigate the possibility of an inte…

This https://arxiv.org/abs/2201.02927 has been replaced.
link: https://scholar.google.com/scholar?q=a

Chameleon-neutrino conformal coupling and MSW-mediated solar neutrino deficit
A modified version of the MSW effect is studied within the framework of screening models through conformal couplings of a scalar field within matter. Such a coupling leads to a new, unknown interaction between the scalar field and the neutrino. We mainly look for the discrepancy in the total solar electron-neutrinos flux through this interaction. Since the scalar field behavior depends on the local density of matter, we observe an indirect effect of matter on flavor changes, and subsequently, o…

This https://arxiv.org/abs/2201.02927 has been replaced.
link: https://scholar.google.com/scholar?q=a

Chameleon-neutrino conformal coupling and MSW-mediated solar neutrino deficit
A modified version of the MSW effect is studied within the framework of screening models through conformal couplings of a scalar field within matter. Such a coupling leads to a new, unknown interaction between the scalar field and the neutrino. We mainly look for the discrepancy in the total solar electron-neutrinos flux through this interaction. Since the scalar field behavior depends on the local density of matter, we observe an indirect effect of matter on flavor changes, and subsequently, o…