Tootfinder

Identifying the transverse and longitudinal modes of the $K^*$ and $K_{1}$ mesons through their angular dependent decay modes
In Woo Park, Hiroyuki Sako, Kazuya Aoki, Philipp Gubler, Su Houng Lee
https://arxiv.org/abs/2403.18288

Identifying the transverse and longitudinal modes of the $K^*$ and $K_{1}$ mesons through their angular dependent decay modes
Observing the mass shifts of chiral partners will provide invaluable insight into the role of chiral symmetry breaking in the generation of hadron masses. Because both the $K^*$ and $K_1$ mesons have vacuum widths smaller than 100 MeV, they are ideal candidates for realizing mass shift measurements. On the other hand, the different momentum dependence of the longitudinal and transverse modes smear the peak positions. In this work, we analyze the angular dependence of the two-body decays of both…

This https://arxiv.org/abs/2308.01243 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Quasinormal modes of the Schwarzchild black hole with a deficit solid angle and quintessence-like matter: Improved asymptotic iteration method
We study the quasinormal modes (QNM) for scalar, and electromagnetic perturbations in the Schwarzchild black hole with a deficit solid angle and quintessence-like matter. Using the sixth--order WKB approximation and the improved asymptotic iteration method (AIM) we can determine the dependence of the quasinormal modes on the parameters of the black hole and the parameters on the test fields. The values of the real part and imaginary parts of the quasi--normal modes increase with the decrease of…

This https://arxiv.org/abs/2102.08382 has been replaced.
link: https://scholar.google.com/scholar?q=a

Recovering the Wedge Modes Lost to 21-cm Foregrounds
One of the critical challenges facing imaging studies of the 21-cm signal at the Epoch of Reionization (EoR) is the separation of astrophysical foreground contamination. These foregrounds are known to lie in a wedge-shaped region of $(k_{\perp},k_{\parallel})$ Fourier space. Removing these Fourier modes excises the foregrounds at grave expense to image fidelity, since the cosmological information at these modes is also removed by the wedge filter. However, the 21-cm EoR signal is non-Gaussian, …

#askFedi
#electronic
Does anyone know how to get these things back to solid color if you get it into one of the modes?

#a11y compliance isn't fully automatable.
For example, substituting comparable navigation modes if the normal ones aren't necessarily accessible, or using multiple modes to differentiate controls (e.g. size or shape in addition to color)
- Paulo Fernandes #phptek

Modes of Thought in Anterran Literature - Season 4 finale ❓📜🎓
Dramatized paranormal horror thriller series | Total listening time: 6h 44m
This course discusses the Anterran Civilization and the evidence regarding the recent archeological ruins uncovered at the bottom of the Pacific Ocean. The earliest human society, years older than previously known to exi...

Modes of Thought in Anterran Literature - Season 4 finale ❓📜🎓
Dramatized paranormal horror thriller series | Total listening time: 6h 44m This course discusses the Anterran Civilization and the evidence regarding the recent archeological ruins uncovered at the bottom of the Pacific Ocean. The earliest human society, years older than previously known to exist, will provide opportunities for analysis of ancient writing and thought. An Official Selection at the Tribeca Festival in 2022. 4 seasons, 23 episodes as of Dec 21, 2023.

This https://arxiv.org/abs/2211.02103 has been replaced.
link: https://scholar.google.com/scholar?q=a

The gyrokinetic dispersion relation of microtearing modes in collisionless toroidal plasmas
We solve the linearized gyrokinetic equation, quasineutrality condition, and Ampere's law to obtain the dispersion relation of microtearing modes (MTMs) in collisionless low-beta toroidal plasmas. Consistent with past studies, we find that MTMs are driven unstable by the electron temperature gradient and that this instability drive is mediated by magnetic drifts. The dispersion relation that we derive can be evaluated numerically very quickly and may prove useful for devising strategies to miti…

This https://arxiv.org/abs/2403.12480 has been replaced.
initial toot: https://mastoxiv.page/@…

Chiral-symmetric Topological Origin of Nonlinear Fixed Points
Particle-hole symmetry and chiral symmetry play a pivotal role in multiple areas of physics, yet they remain un-studied in systems with nonlinear interactions that are beyond Kerr-type. Here, we establish these two non-spatial symmetries in systems with strong and general nonlinear interactions. Chiral symmetry ensures the quantization of the Berry phase of nonlinear normal modes and categorizes the topological phases of nonlinear dynamics. We show edge modes that serve as topologically protect…

This https://arxiv.org/abs/2301.07456 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Parametric resonance in abelian and non-abelian gauge fields via space-time oscillations
We study the evolution of abelian $U(1)$ electromagnetic as well as non-abelian $SU(2)$ gauge fields, in the presence of space-time oscillations. Analysis of the time evolution of abelian gauge fields shows the presence of parametric resonance in spatial modes. A similar analysis in the case of non-abelian gauge fields, in the linear approximation, shows the presence of the same resonant spatial modes. The resonant modes induce large fluctuations in physical observables including those that bre…

I've been reading "On Green” (https://joecarlsmith.com/2024/03/21/on-green) and its following article, “On Attunement” with some interest today. I am uninterested in the ways he is focused on “AGI”, but that might actually be part of what he's saying and missing.
They talk about the philosophy of green in the "magic the gathering" sense, which has five core modes of things, and being a game, designed to balance. It's an attractive system and not without merit as a philosophical labeling system. In short: white, moral; blue, knowledge and rationality; red, passion and desire; black, power and achievement. And green. Green is the subject they can't identify clearly.
I don't think they really understand green. (They come from a very rationalist place, and that's not a good mode to understand Green)
Green is the domain of systems thinking and of ecology. It's one of flexible boundaries and hierarchies that vanish when you look at them for long. They talk about philosophical agents and try to fit a green philosophical stance into that framework, but it misses: the very idea of a self is nebulous in a green philosophy. Yes, it obviously exists, we are all separate from each other. But also we are inseparable from each other. Green is a philosophy of relationality and multiple perspectives and ever shifting viewpoints. It's not just yin, passive, permissive, but holistic. It's not that it lets the Other in, it's that it actively is in relation with the Other. The other is the self, the self is the other.
The essays also label green as conservative, and this is not quite true. It is not about being slow or regressive or traditional, but about being whole. They can't quite see that green's willingness to accept death and pain as things that happen and also its strong preservationist stance are not opposed to each other. It seems incoherent, but it's not: death and pain are things that happen to living parts of an ecosystem. They matter, but so too does the whole matter. Where so many blue rationalists see statistical and demographic counts of deaths and "sentient beings harmed”, green sees a whole ecosystem where some of that is deeply natural. It's unnatural, ecosystem-harming deaths that are disasters in the green philosophy. Wholesale extinctions. Protracted, painful deaths, as much for the wound they cause outside the individual as the individual suffering as well. But we all come to an end, and to change that wholesale would end so many kinds of relationship, so many things.
Green revels in the illegible, the incomplete, and the connected. It's easy to be green-blind, to ignore the subtle systemic effects. So many of us want simple cause and effect, rather than action and plurality of reactions.
Green's ability to embrace the illegible lets it deal with Red chaos; its resilience tempers red passion. It can ally with White philosophies into a pastoral, conservative, moralistic framework. It ends up at odds with the rationalist Blue and the power-hungry Black, because they drive disequilibrium, but more than just transition to new stable ecologies, they drive systems permanently out of stability, destroying relationships in their path. When confronted with this, they will deny it because the objects are still there. Preserved. Catalogued. Legible and accounted for. Perhaps used instrumentally. Perhaps wrecked for some "greater purpose” but only acknowledged as objects. The relationships between things remain illegible.

This https://arxiv.org/abs/2311.15030 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Tuning-free Quasi-stiffness Control Framework of a Powered Transfemoral Prosthesis for Task-adaptive Walking
Impedance-based control represents a prevalent strategy in the development of powered transfemoral prostheses. However, creating a task-adaptive, tuning-free controller that effectively generalizes across diverse locomotion modes and terrain conditions continues to be a significant challenge. This letter proposes a tuning-free and task-adaptive quasi-stiffness control framework for powered prostheses that generalizes across various walking tasks, including the torque-angle relationship reconstr…

Energetics of Fano coherence generation
Ludovica Donati, Francesco Saverio Cataliotti, Stefano Gherardini
https://arxiv.org/abs/2402.16056 https://<…

Energetics of Fano coherence generation
In a multi-level quantum system Fano coherences stand for the formation of quantum coherences due to the interaction with the continuum of modes characterizing an incoherent process. When the incoherent source vanishes, Fano coherences tend to disappear. In this paper we propose a V-type three-level quantum system on which we certify the presence of genuinely quantum traits underlying the generation of Fano coherences. We do this by determining work conditions that allows for the loss of positi…

This https://arxiv.org/abs/2312.15414 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

On corrugation mode radial wavelengths of the vertical shear instability
The vertical shear instability (VSI) is a promising mechanism to drive turbulence in protoplanetary disks. Numerical simulations in the literature demonstrate that the VSI non-linear saturation is predominated by the linear corrugation modes. These modes possess vertical wavelengths crucially longer than radial wavelengths. This paper aims to investigate the natural radial wavelength of corrugation modes upon VSI saturation, by a series of numerical simulations conducted in Athena++ at differen…

This https://arxiv.org/abs/2403.05030 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCR_…

Defending Against Unforeseen Failure Modes with Latent Adversarial Training
AI systems sometimes exhibit harmful unintended behaviors post-deployment. This is often despite extensive diagnostics and debugging by developers. Minimizing risks from models is challenging because the attack surface is so large. It is not tractable to exhaustively search for inputs that may cause a model to fail. Red-teaming and adversarial training (AT) are commonly used to make AI systems more robust. However, they have not been sufficient to avoid many real-world failure modes that differ…

Resonance of low-frequency electromagnetic and ion-sound modes in the solar wind
I. Y. Vasko, F. S. Mozer, T. Bowen, J. Verniero, X. An, A. V. Artemyev, J. W. Bonnell, J. Halekas, I. V. Kuzichev
https://arxiv.org/abs/2404.16121

Resonance of low-frequency electromagnetic and ion-sound modes in the solar wind
Parker Solar Probe measurements have recently shown that coherent fast magnetosonic and Alfvén ion-cyclotron waves are abundant in the solar wind and can be accompanied by higher-frequency electrostatic fluctuations. In this letter we reveal the nonlinear process capable of channelling the energy of low-frequency electromagnetic to higher-frequency electrostatic fluctuations observed aboard Parker Solar Probe. We present Hall-MHD simulations demonstrating that low-frequency electromagnetic flu…

Manipulating Majorana zero modes in the spin-1/2 Kitaev ladder
Haoting Xu, Hae-Young Kee
https://arxiv.org/abs/2404.16099 https://arx…

Manipulating Majorana zero modes in the spin-1/2 Kitaev ladder
The one-dimensional $p$-wave superconductor, characterized by boundary Majorana modes, has attracted significant interest owing to its potential application in topological quantum computation. Similarly, spin-1/2 Kitaev ladder systems with bond-dependent Ising interactions, featuring Majorana fermions coupled with $Z_2$ flux, exhibit boundary Majorana modes when in a topological phase. However, the ground state degeneracy, inherent in these systems, may result in the annihilation of Majorana mo…

Duality between Seiberg-Witten Theory and Black Hole Superradiance
Xian-Hui Ge, Masataka Matsumoto, Kilar Zhang
https://arxiv.org/abs/2402.17441 https://…

Duality between Seiberg-Witten Theory and Black Hole Superradiance
The newly established Seiberg-Witten (SW)/Quasinormal Modes (QNM) correspondence offers an efficient analytical approach to calculate the QNM frequencies, which was only available numerically before. This is based on the fact that both sides are characterized by Heun-type equations. We find that a similar duality exists between Seiberg-Witten theory and black hole superradiance, since the latter can also be linked to confluent Heun equation after proper transformation. Then a dictionary is cons…

Let’s hope this #security-conscious *choice* in the Kia EV9 is the start of a trend. They didn’t have to give us this. In a real button, no less — you can connect or disconnect the data from your phone while #USB-charging it in your car. From MKBHD

Cooperation and Control in Delegation Games
Oliver Sourbut, Lewis Hammond, Harriet Wood
https://arxiv.org/abs/2402.15821 https://arxi…

Cooperation and Control in Delegation Games
Many settings of interest involving humans and machines -- from virtual personal assistants to autonomous vehicles -- can naturally be modelled as principals (humans) delegating to agents (machines), which then interact with each other on their principals' behalf. We refer to these multi-principal, multi-agent scenarios as delegation games. In such games, there are two important failure modes: problems of control (where an agent fails to act in line their principal's preferences) and problems o…

Shiny new posting interface in the latest Glitch-Social code, including a much more visible choice of posting modes, and with the 'Unlisted' mode renamed to "Quiet Public".
Likely to be coming to a Mastodon server near you fairly soon.
#glitchsoc #mastodon

This https://arxiv.org/abs/2312.09551 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Learning-based Axial Video Motion Magnification
Video motion magnification amplifies invisible small motions to be perceptible, which provides humans with a spatially dense and holistic understanding of small motions in the scene of interest. This is based on the premise that magnifying small motions enhances the legibility of motions. In the real world, however, vibrating objects often possess convoluted systems that have complex natural frequencies, modes, and directions. Existing motion magnification often fails to improve legibility sinc…

An Efficient Risk-aware Branch MPC for Automated Driving that is Robust to Uncertain Vehicle Behaviors
Luyao Zhang, George Pantazis, Shaohang Han, Sergio Grammatico
https://arxiv.org/abs/2403.18695

An Efficient Risk-aware Branch MPC for Automated Driving that is Robust to Uncertain Vehicle Behaviors
One of the critical challenges in automated driving is ensuring safety of automated vehicles despite the unknown behavior of the other vehicles. Although motion prediction modules are able to generate a probability distribution associated with various behavior modes, their probabilistic estimates are often inaccurate, thus leading to a possibly unsafe trajectory. To overcome this challenge, we propose a risk-aware motion planning framework that appropriately accounts for the ambiguity in the es…

Using text embedding models and vector databases as text classifiers with the example of medical data
Rishabh Goel
https://arxiv.org/abs/2402.16886 https:/…

Using text embedding models and vector databases as text classifiers with the example of medical data
The advent of Large Language Models (LLMs) is promising and has found application in numerous fields, but as it often is with the medical field, the bar is typically quite high [5]. In tandem with LLMs, vector embedding models and vector databases provide a robust way of expressing numerous modes of data that are easily digestible by typical machine learning models. Along with the ease of adding information, knowledge, and data to these vector databases, they provide a compelling reason to appl…

Quasinormal modes of a regular black hole with sub-Planckian curvature
Dan Zhang, Huajie Gong, Guoyang Fu, Jian-Pin Wu, Qiyuan Pan
https://arxiv.org/abs/2402.15085

Quasinormal modes of a regular black hole with sub-Planckian curvature
This paper explores the properties of the quasinormal modes (QNMs) of a regular black hole(BH) characterized by a Minkowski core and sub-Planckian curvature. When focusing on a special case, this regular BH exhibits identical large-scale behavior with the Hayward BH and some loop quantum gravity corrected (LQG-corrected) BH. A notable characteristic of the QNMs in this regular BH is the pronounced outburst of overtones when compared to the Schwarzschild BH (SS-BH). This outburst can be attribut…

Evaluation of Some Blockcipher
Modes of Operation
https://web.cs.ucdavis.edu/~rogaway/papers/modes.pdf

Bondi-Hoyle-Lyttleton Accretion around the Rotating Hairy Horndeski Black Hole
Orhan Donmez
https://arxiv.org/abs/2402.16707 https://…

Bondi-Hoyle-Lyttleton Accretion around the Rotating Hairy Horndeski Black Hole
We model the dynamical changes of the disk and shock cone resulting from the interaction of matter with the Horndeski black hole, at where the scalar field and spacetime has a strong interaction. The effects of the scalar hair, the black hole rotation parameter, and the impacts of the asymptotic speed have been examined, revealing the influence of these parameters on the shock cone and the trapped QPO modes within the cone. Numerical calculations have shown that the hair paramete significantly …

This https://arxiv.org/abs/2308.06162 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

A search for rare $B \rightarrow D μ^+ μ^-$ decays
A search for rare $B \rightarrow D μ^+ μ^-$ decays is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. No significant signals are observed in the non-resonant $μ^+μ^-$ modes, and upper limits of $\mathcal{B}(B^0 \rightarrow \overline{D}^0 μ^+ μ^-) < 5.1 \times 10^{-8}$, $\mathcal{B}(B^+ \rightarrow D_s^+ μ^+ μ^-) < 3.2 \times 10^{-8}$, $\mathcal{B}(B_s^0 \rightarrow \overline{D}^0 μ^+ μ^-) < 1.6 \t…

Generation of multiple bound states in the continuum through doubly degenerate quasi-guided modes
Tetsuyuki Ochiai
https://arxiv.org/abs/2404.16472 https:/…

Generation of multiple bound states in the continuum through doubly degenerate quasi-guided modes
We present a detailed theoretical analysis of a peculiar generation of multiple bound states in the continuum (BICs) in two-dimensional periodic arrays of dielectric spheres. They emerge in high-symmetry lattices with the $C_{6v}$ and $C_{4v}$ point groups and involve doubly degenerate quasi-guided modes at the $Γ$ point that can couple to external radiation. By tuning a system parameter, the doubly degenerate modes can exhibit accidental BICs at a critical parameter. In the vicinity of the cr…

A Mathematical Description of the Quasi-Periodically Developed Heat Transfer Regime in Channels with Arrays of Periodic Solid Structures
Geert Buckinx
https://arxiv.org/abs/2403.16960

A Mathematical Description of the Quasi-Periodically Developed Heat Transfer Regime in Channels with Arrays of Periodic Solid Structures
In this article, we present the governing equations for the temperature field upstream and downstream of the periodically developed flow region in channels with arrays of periodic solid structures. From the ansatz that the temperature field in this region is determined by exponentially decaying modes, just like the quasi-developed flow field, we arrive at an eigenvalue problem which governs the allowed temperature modes. This eigenvalue problem is virtually identical to the one for periodically…

Le #REM « cannibalise » les revenus du transport collectif
https://www.lapresse.ca/actualites/grand-montreal…

I think the rationalist obsession with general artificial intelligence as an existential threat is baffling, but I find it baffling because I come from a Green philosophical background. I'm horrified by AI systems as they are today because they are destroying ecosystems (both literal, our climate, and more abstract — art, economy, authorship).
From a relational point of view, they are a disaster. A few mega-corporations are steering our information ecology, in an instrumentalist way. They cannot even see the bonds they are destroying. We are far poorer for it.
We already have paperclip maximizers: billionaires. Corporations. Profit motive. Money is just paperclips with power attached.
These ways of thinking can only see a system so far as to instrumentalize it. After that they switch to modes of control that eliminate any need for understanding.

Energetics of Fano coherence generation
Ludovica Donati, Francesco Saverio Cataliotti, Stefano Gherardini
https://arxiv.org/abs/2402.16056 https://<…

Energetics of Fano coherence generation
In a multi-level quantum system Fano coherences stand for the formation of quantum coherences due to the interaction with the continuum of modes characterizing an incoherent process. When the incoherent source vanishes, Fano coherences tend to disappear. In this paper we propose a V-type three-level quantum system on which we certify the presence of genuinely quantum traits underlying the generation of Fano coherences. We do this by determining work conditions that allows for the loss of positi…

OK, xsane sees my scanner, and had a go at getting a preview and a scan; hmm - I'm losing a bunch of data somewhere, so only getting a few stripes out; (and a bunch of SCSI errors...); I'm also down at one of the slower paralle port modes and turning DMA off; still progress, first time it's tried to scan in ~15 years I guess.

This https://arxiv.org/abs/2312.15414 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

On corrugation mode radial wavelengths of the vertical shear instability
The vertical shear instability (VSI) is a promising mechanism to drive turbulence in protoplanetary disks. Numerical simulations in the literature demonstrate that the VSI non-linear saturation is predominated by the linear corrugation modes. These modes possess vertical wavelengths crucially longer than radial wavelengths. This paper aims to investigate the natural radial wavelength of corrugation modes upon VSI saturation, by a series of numerical simulations conducted in Athena++ at differen…

This https://arxiv.org/abs/2404.11696 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Graviton topology
Over the past three decades, it has been shown that discrete and continuous media can support topologically nontrivial modes. Recently, it was shown that the same is true of the vacuum, namely, right (R) and left (L) circularly polarized photons are topologically nontrivial. Here, we study the topology of another class of massless particles, namely the gravitons. Working in the transverse-traceless gauge and the limit of weak gravity, we show that the collection of all gravitons forms a rank-tw…

On the incidence rate of RR Lyrae stars with non-radial modes
H. Netzel, V. Varga, R. Szabo, R. Smolec, E. Plachy
https://arxiv.org/abs/2404.14373 https://…

On the incidence rate of RR Lyrae stars with non-radial modes
Over the recent years, additional low-amplitude non-radial modes were detected in many of the first-overtone RR Lyrae stars. These non-radial modes form a characteristic period ratio with the dominant first-overtone mode of around 0.61. The incidence rate of this phenomenon changes from population to population. It is also strongly dependent on the quality of the analyzed data. Current models explaining these additional signals involve non-radial modes of degrees 8 and 9. Using synthetic horizo…

This https://arxiv.org/abs/2311.10690 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

On the degrees of freedom count on singular phase space submanifolds
I discuss singular loci in the phase spaces of theories which lack globally well-defined numbers of dynamical modes. This is a topic which appears quite often in the recent literature on modified gravity. In particular, there were discussions about $R^2$ gravity around Minkowski space. It is a relatively simple case, and still there were some confusions. It clearly shows that one should be very accurate when trying to understand a potentially problematic theory through perturbations around a si…

Let’s hope this #security-conscious *choice* in the Kia EV9 is the start of a trend. They didn’t have to give us this. In a real button, no less — you can connect or disconnect the data from your phone while #USB-charging it in your car. From MKBHD

This https://arxiv.org/abs/2403.10921 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csIT_…

Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surfaces Empowered Cooperative Rate Splitting with User Relaying
In this work, we unveil the advantages of synergizing cooperative rate splitting (CRS) with user relaying and simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR RIS). Specifically, we propose a novel STAR RIS-assisted CRS transmission framework, featuring six unique transmission modes that leverage various combination of the relaying protocols (including full duplex-FD and half duplex-HD) and the STAR RIS configuration protocols (including energy splitting-ES, m…

Shiny new posting interface in the latest Glitch-Social code, including a much more visible choice of posting modes, and with the 'Unlisted' mode renamed to "Quiet Public".
Likely to be coming to a Mastodon server near you fairly soon.
#glitchsoc #mastodon

Beyond Boolean networks, a multi-valued approach
J. Garc\'ia Galofre, M. P\'erez Mill\'an, A. Galarza Rial, R. Laubenbacher, A. Dickenstein
https://arxiv.org/abs/2404.16760

Beyond Boolean networks, a multi-valued approach
Boolean networks can be viewed as functions on the set of binary strings of a given length, described via logical rules. They were introduced as dynamic models into biology, in particular as logical models of intracellular regulatory networks involving genes, proteins, and metabolites. Since genes can have several modes of action, depending on their expression levels, binary variables are often not sufficiently rich, requiring the use of multi-valued networks instead. The steady state analysis …

This https://arxiv.org/abs/2307.12683 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Joint Ultra-wideband Characterization of Azimuth, Elevation and Time of Arrival with Toric Arrays
In this paper, we present an analytical framework for the joint characterization of the 3D direction of arrival (DoA), i.e., azimuth and elevation components, and time of arrival (ToA) in multipath environments. The analytical framework is based on the use of nearly frequency-invariant beamformers (FIB) formed by toric arrays. The frequency response of the toric array is expanded as a series of phase modes, which leads to azimuth-time and elevation-time diagrams from which the 3D DoA and the To…

#macOS and #iOS use a number of fixed, but relatively arbitrary times; e.g. focus modes persist until 7pm in the evening, or you can schedule an email to send at 8am the following day. But AFAIK there isn’t any way of customising these for those who work on a different schedule.

Collective excitations in two-dimensional harmonically trapped quantum droplets
Yifan Fei, Xucong Du, Xiao-Long Chen, Yunbo Zhang
https://arxiv.org/abs/2402.15811

Collective excitations in two-dimensional harmonically trapped quantum droplets
The collective excitation modes in quantum droplets trapped in a two-dimensional harmonic potential in the context of symmetric weakly interacting binary bosonic mixtures are studied. By utilizing the linearization technique, the time-dependent extended Gross-Pitaevskii equation, and a sum-rule approach with a variational approximation, the ground state properties and collective excitations of such a two-dimensional quantum system are investigated for various system parameters. We present compr…

This https://arxiv.org/abs/2312.11613 has been replaced.
initial toot: https://mastoxiv.page/@a…

Phenomenology of Majorana zero modes in full-shell hybrid nanowires
Full-shell nanowires have been proposed as an alternative nanowire design in the search of topological superconductivity and Majorana zero modes (MZMs). They are hybrid nanostructures consisting of a semiconductor core fully covered by a thin superconductor shell and subject to a magnetic flux. In this work we critically examine this proposal, finding a very rich spectral phenomenology that combines the Little-Parks modulation of the parent-gap superconductor with flux, the presence of flux-dis…

Optimization of foreground moment deprojection for semi-blind CMB polarization reconstruction
Alessandro Carones, Mathieu Remazeilles
https://arxiv.org/abs/2402.17579

Optimization of foreground moment deprojection for semi-blind CMB polarization reconstruction
Upcoming Cosmic Microwave Background (CMB) experiments, aimed at measuring primordial CMB B-modes, require exquisite control of Galactic foreground contamination. Minimum-variance techniques, like the Needlet Internal Linear Combination (NILC), have proven effective in reconstructing the CMB polarization signal and mitigating foregrounds across diverse sky models without suffering from mismodelling errors. Still, residual contamination may bias the recovered CMB polarization at large angular sc…

Wave mechanics in an ionic liquid mixture
Timothy S. Groves, Susan Perkin
https://arxiv.org/abs/2402.17480 https://arxiv.org/pdf/2402…

Wave mechanics in an ionic liquid mixture
Experimental measurements of interactions in ionic liquids and concentrated electrolytes over the past decade or so have revealed simultaneous monotonic and oscillatory decay modes. These observations have been hard to interpret using classical theories, which typically allow for just one electrostatic decay mode in electrolytes. Meanwhile, substantial progress in the theoretical description of dielectric response and ion correlations in electrolytes has illuminated the deep connection between …

High-order topological pumping on a superconducting quantum processor
Cheng-Lin Deng, Yu Liu, Yu-Ran Zhang, Xue-Gang Li, Tao Liu, Chi-Tong Chen, Tong Liu, Cong-Wei Lu, Yong-Yi Wang, Tian-Ming Li, Cai-Ping Fang, Si-Yun Zhou, Jia-Cheng Song, Yue-Shan Xu, Yang He, Zheng-He Liu, Kai-Xuan Huang, Zhong-Cheng Xiang, Jie-Ci Wang, Dong-Ning Zheng, Guang-Ming Xue, Kai Xu, H. F. Yu, Heng Fan

High-order topological pumping on a superconducting quantum processor
High-order topological phases of matter refer to the systems of $n$-dimensional bulk with the topology of $m$-th order, exhibiting $(n-m)$-dimensional boundary modes and can be characterized by topological pumping. Here, we experimentally demonstrate two types of second-order topological pumps, forming four 0-dimensional corner localized states on a 4$\times$4 square lattice array of 16 superconducting qubits. The initial ground state of the system for half-filling, as a product of four identic…

Observation of the $\Xi^-_\mathrm{b}$ $\to$ $\psi$(2S)$\Xi^-$ decay and studies of the $\Xi_\mathrm{b}^{\ast{}0}$ baryon in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS Collaboration
https://arxiv.org/abs/2402.17738

Observation of the $Ξ^-_\mathrm{b}$ $\to$ $ψ$(2S)$Ξ^-$ decay and studies of the $Ξ_\mathrm{b}^{\ast{}0}$ baryon in proton-proton collisions at $\sqrt{s}$ = 13 TeV
The first observation of the decay $Ξ^-_\mathrm{b}$ $\to$ $ψ$(2S)$Ξ^-$ and measurement of the branching ratio of $Ξ^-_\mathrm{b}$ $\to$ $ψ$(2S)$Ξ^-$ to $Ξ^-_\mathrm{b}$ $\to$ J/$ψ$$Ξ^-$ are presented. The J/$ψ$ and $ψ$(2S) mesons are reconstructed using their dimuon decay modes. The results are based on proton-proton colliding beam data from the LHC collected by the CMS experiment at $\sqrt{s}$ = 13 TeV in 2016-2018, corresponding to an integrated luminosity of 140 fb$^{-1}$. The bra…

This https://arxiv.org/abs/2309.11355 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Scalar quasi-normal modes of accelerating Kerr-Newman-AdS black holes
We study linear scalar perturbations of slowly accelerating Kerr-Newman-anti-de Sitter black holes using the method of isomonodromic deformations. The conformally coupled Klein-Gordon equation separates into two second-order ordinary differential equations with five singularities. Nevertheless, the angular equation can be transformed into a Heun equation, for which we provide an asymptotic expansion for the angular eigenvalues in the small acceleration and rotation limit. In the radial case, we…

To fight climate change we must reduce the burning of fossil fuels. A big component of the latter is the use of inefficient modes of transportation, such as diesel trucks and "Ford type" cars (~1 ton personal ICE vehicles) instead of trains, metro, buses. >>

This https://arxiv.org/abs/2311.10690 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

On the degrees of freedom count on singular phase space submanifolds
I discuss singular loci in the phase spaces of theories which lack globally well-defined numbers of dynamical modes. This is a topic which appears quite often in the recent literature on modified gravity. In particular, there were discussions about $R^2$ gravity around Minkowski space. It is a relatively simple case, and still there were some confusions. It clearly shows that one should be very accurate when trying to understand a potentially problematic theory through perturbations around a si…

This https://arxiv.org/abs/2312.01173 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

$P$-wave states $T^-_{bb}$ from diquarks
We investigate the $P$-wave states $T^-_{bb}$ in the isospin singlet and three excited modes [excitation occurring in the diquark $[bb]^{s_1}_{c_1}$ ($ρ$-mode), antidiquark $[\bar{u}\bar{d}]^{s_2}_{c_2}$ ($r$-mode) or between them ($λ$-mode)] from diquarks in a quark model. We analyze the dynamical behaviors of the diquark $[bb]^{s_1}_{c_1}$, antidiquark $[\bar{u}\bar{d}]^{s_2}_{c_2}$ and their correlations in the states $T^-_{bb}$ by decomposing the interactions from various sources in the m…

Real-Time Recognition of Vortex Beams Modes Through Random Diffusive at the Speed of Light
Tong Fu, Gang Luo, Jia Cheng Li, Yuan Chao Geng, Xiao Dong Yuan
https://arxiv.org/abs/2403.16420

Real-Time Recognition of Vortex Beams Modes Through Random Diffusive at the Speed of Light
Optical vortex beam with orbital angular momentum (OAM) has great potential to increase the capacity of optical communication and information processing in classical and quantum regimes. Nevertheless, important challenges that influence the optical data transmission in free space is the existence of diffusers along the optical path, which causes inevitable information loss during the wave propagation. Numerous algorithms have been proposed successively for identifying the modes of vortex beams …

High-order topological pumping on a superconducting quantum processor
Cheng-Lin Deng, Yu Liu, Yu-Ran Zhang, Xue-Gang Li, Tao Liu, Chi-Tong Chen, Tong Liu, Cong-Wei Lu, Yong-Yi Wang, Tian-Ming Li, Cai-Ping Fang, Si-Yun Zhou, Jia-Cheng Song, Yue-Shan Xu, Yang He, Zheng-He Liu, Kai-Xuan Huang, Zhong-Cheng Xiang, Jie-Ci Wang, Dong-Ning Zheng, Guang-Ming Xue, Kai Xu, H. F. Yu, Heng Fan

High-order topological pumping on a superconducting quantum processor
High-order topological phases of matter refer to the systems of $n$-dimensional bulk with the topology of $m$-th order, exhibiting $(n-m)$-dimensional boundary modes and can be characterized by topological pumping. Here, we experimentally demonstrate two types of second-order topological pumps, forming four 0-dimensional corner localized states on a 4$\times$4 square lattice array of 16 superconducting qubits. The initial ground state of the system for half-filling, as a product of four identic…

Waveform systematics in gravitational-wave inference of signals from binary neutron star merger models incorporating higher order modes information
A. B. Yelikar, R. O' Shaughnessy, J. Lange, A. Z. Jan
https://arxiv.org/abs/2404.16599

Waveform systematics in gravitational-wave inference of signals from binary neutron star merger models incorporating higher order modes information
Accurate information from gravitational wave signals from coalescing binary neutron stars provides essential input to downstream interpretations, including inference of the neutron star population and equation of state. However, even adopting the currently most accurate and physically motivated models available for parameter estimation (PE) of BNSs, these models remain subject to waveform modeling uncertainty: differences between these models may introduce biases in recovered source properties.…

Search for high-mass resonances in final states with a $\tau$-lepton and missing transverse momentum with the ATLAS detector
ATLAS Collaboration
https://arxiv.org/abs/2402.16576 <…

Search for high-mass resonances in final states with a $τ$-lepton and missing transverse momentum with the ATLAS detector
A search for high-mass resonances decaying into a $τ$-lepton and a neutrino using proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV is presented. The full Run 2 data sample corresponding to an integrated luminosity of 139 fb$^{-1}$ recorded by the ATLAS experiment in the years 2015-2018 is analyzed. The $τ$-lepton is reconstructed in its hadronic decay modes and the total transverse momentum carried out by neutrinos is inferred from the reconstructed missing transverse …

This https://arxiv.org/abs/2402.03193 has been replaced.
link: https://scholar.google.com/scholar?q=a

Spinning $Q$-ball Superradiance in 3+1D
Recently, it has been found that a $Q$-ball can amplify waves incident upon it, due to rotation in the internal space and the interaction of the two modes in the complex scalar field. While the spherically symmetric 3D case has been investigated previously, here we explore the 3D axi-symmetric case, which is numerically much more challenging. The difficulty comes because a partial wave expansion is needed, and the different partial waves can not be separated, for either the background spinning …

This https://arxiv.org/abs/2307.03249 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Single field inflation in the light of Pulsar Timing Array Data: Quintessential interpretation of blue tilted tensor spectrum through Non-Bunch Davies initial condition
In this work, we present a quintessential interpretation of having a blue-tilted tensor power spectrum for canonical single-field slow-roll inflation to explain the recently observed Pulsar Timing Array (NANOGrav 15-year and EPTA) signal of Gravitational Waves (GW). We formulate the complete semi-classical description of cosmological perturbation theory in terms of scalar and tensor modes using the Non-Bunch Davies initial condition. We found that the existence of the blue tilt ($n_t$) within t…

This https://arxiv.org/abs/2401.02522 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Kinetic theory formulation of the $P$- and $CP$-odd terms in the photon self-energy in a medium
In an optically active medium, such as a plasma that contains a neutrino background, the left-handed and right-handed polarization photon modes acquire different dispersion relations. We study the propagation of photons in such a medium, which is otherwise isotropic, within the framework of the covariant collissionless Boltzmann equation incorporating a term that parametrizes the optical activity. Using the linear response approximation, we obtain the formulas for the components of the photon p…

This https://arxiv.org/abs/2311.02972 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Non-linear Three-mode Coupling of Gravity Modes in Rotating Slowly Pulsating B Stars: Stationary Solutions and Modeling Potential
Context. Slowly pulsating B (SPB) stars display multi-periodic variability in the gravito-inertial mode regime with indications of non-linear resonances between modes. Several have undergone asteroseismic modeling in the past few years to infer their internal properties in a linear setting. Rotation is typically included in the modeling by means of the traditional approximation of rotation (TAR). Aims. We aim to extend the set of tools available for asteroseismology, by describing time-indepe…

Simultaneous measurement of multimode squeezing
Ismail Barakat, Mahmoud Kalash, Dennis Scharwald, Polina Sharapova, Norbert Lindlein, Maria Chekhova
https://arxiv.org/abs/2402.15786

Simultaneous measurement of multimode squeezing
Multimode squeezed light is an increasingly popular tool in photonic quantum technologies, including sensing, imaging, and computation. Meanwhile, the existing methods of its characterization are technically complicated, and in the best case, deal with a single mode at a time. Here, we demonstrate experimentally how the squeezing can be measured in multiple spatial modes simultaneously, using optical parametric amplification and direct detection followed by modal decomposition based on spatial …

This https://arxiv.org/abs/2404.09418 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Polarized radio emission of RRAT J1854+0306
Polarized radio emission of RRAT J1854+0306 is investigated with single pulses using FAST. Its emission is characterized by nulls, narrow and weak pulses and occasional wide and intense bursts with a nulling fraction of 53.2%. Its burst emission is typically of one rotation, and occasionally of two or three or even 5 rotations at the most, but without significant periodicity. The integrated pulse profile has a `S' shaped position angle curve that is superposed with orthogonal modes, from which …

This https://arxiv.org/abs/2402.06541 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Charge Collective Modes in Correlated Electron Systems: Plasmons Beyond the Random Phase Approximation
Elucidating the impact of strong electronic interactions on the collective excitations of metallic systems has been of longstanding interest, mainly due to the inadequacy of the random phase approximation (RPA) in the strongly correlated regime. Here, we adopt our newly developed radial Kotliar and Ruckenstein slave boson representation to analyze the charge excitation spectrum of a Hubbard model, extended with long range interactions. Working on the face centered cubic lattice, at half filling…

Energy exchanges between coherent modes in the near wake of a rotor model at different tip speed ratios
Neelakash Biswas, Oliver R. H. Buxton
https://arxiv.org/abs/2402.13063

Energy exchanges between coherent modes in the near wake of a rotor model at different tip speed ratios
In this work we investigate the spatio-temporal nature of various coherent modes present in a rotor wake using a combination of new PIV experiments and data from Biswas and Buxton (2024). A multi-scale triple decomposition of the acquired velocity field is sought to extract the coherent modes and thereafter, the energy exchanges to and from them are studied using the multi-scale triple-decomposed coherent kinetic energy budgets developed by Baj and Buxton (2017). Different frequencies forming t…

This https://arxiv.org/abs/2312.11633 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Conformal boundary conditions for a 4d scalar field
We construct unitary, stable, and interacting conformal boundary conditions for a free massless scalar in four dimensions by coupling it to edge modes living on a boundary. The boundary theories we consider are bosonic and fermionic QED$_3$ with $N_f$ flavors and a Chern-Simons term at level $k$, in the large-$N_f$ limit with fixed $k/N_f$. We find that interacting boundary conditions only exist when $k\neq 0$. To obtain this result we compute the $β$ functions of the classically marginal coup…

This https://arxiv.org/abs/2309.04962 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Scalar fields around a loop quantum gravity black hole in de Sitter spacetime: Quasinormal modes, late-time tails and strong cosmic censorship
Loop quantum gravity, as one branch of quantum gravity, holds the potential to explore the fundamental nature of black holes. Recently, according to the quantum Oppenheimer-Snyder model in loop quantum cosmology, a novel loop quantum corrected black hole in de Sitter spacetime has been discovered. Here, we first investigate the corresponding quasinormal modes and late-time behavior of massless neutral scalar field perturbations based on such a quantum-modified black hole in de Sitter spacetime.…

This https://arxiv.org/abs/2401.08199 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Photonic Modes Prediction via Multi-Modal Diffusion Model
The concept of photonic modes is the cornerstone in optics and photonics, which can describe the propagation of the light. The Maxwell's equations play the role in calculating the mode field based on the structure information, while this process needs a great deal of computations, especially in the handle with a three-dimensional model. To overcome this obstacle, we introduce the Multi-Modal Diffusion model to predict the photonic modes in one certain structure. The Contrastive Language-Image P…

Active drive towards elastic spinodals
Ayan Roychowdhury, Madan Rao, Lev Truskinovsky
https://arxiv.org/abs/2403.17517 https://arxiv.…

Active drive towards elastic spinodals
Active renewable matter, a distinctive feature of adaptive living materials, can exhibit highly unusual mechanical responses by actively navigating the space of material parameters. In particular, it can self-drive towards elastic spinodals where the presence of inhomogeneous floppy modes, makes the matter elastically degenerate. The main effect of the implied marginality is stress localization leading to the emergence of force chains which can be actively assembled and disassembled. In this Le…

Simultaneous measurement of multimode squeezing
Ismail Barakat, Mahmoud Kalash, Dennis Scharwald, Polina Sharapova, Norbert Lindlein, Maria Chekhova
https://arxiv.org/abs/2402.15786

Simultaneous measurement of multimode squeezing
Multimode squeezed light is an increasingly popular tool in photonic quantum technologies, including sensing, imaging, and computation. Meanwhile, the existing methods of its characterization are technically complicated, and in the best case, deal with a single mode at a time. Here, we demonstrate experimentally how the squeezing can be measured in multiple spatial modes simultaneously, using optical parametric amplification and direct detection followed by modal decomposition based on spatial …

This https://arxiv.org/abs/2312.11633 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Conformal boundary conditions for a 4d scalar field
We construct unitary, stable, and interacting conformal boundary conditions for a free massless scalar in four dimensions by coupling it to edge modes living on a boundary. The boundary theories we consider are bosonic and fermionic QED$_3$ with $N_f$ flavors and a Chern-Simons term at level $k$, in the large-$N_f$ limit with fixed $k/N_f$. We find that interacting boundary conditions only exist when $k\neq 0$. To obtain this result we compute the $β$ functions of the classically marginal coup…

The flavor structures on magnetized orbifold models and 4D modular symmetric models
Shota Kikuchi
https://arxiv.org/abs/2403.17280 https://

The flavor structures on magnetized orbifold models and 4D modular symmetric models
We study quark and lepton flavor structures on magnetized $T^2/\mathbb{Z}_2$ twisted orbifold model. There are 6,460 number of flavor models but most of them cannot lead to realistic flavor observables because of the difficulties on realizing mass hierarchies and small (large) mixing angles of quarks (leptons). We find that certain zero point patterns of zero-modes of fermions and Higgs fields give the flavor models being able to avoid these difficulties. We classify such flavor models and show…

On standing wave in perturbed anti-de Sitter spacetimes with a naked singularity
Kai Lin, Wei-Liang Qian
https://arxiv.org/abs/2404.16254 https://

On standing wave in perturbed anti-de Sitter spacetimes with a naked singularity
In the framework of black hole perturbation theory, this work investigates the standing wave solutions in Reissner-Nordtsröm (RN) anti-de Sitter (AdS) spacetimes with a naked singularity. These solutions can be viewed as a specific class of quasinormal modes exhibiting distinct characteristics. The imaginary parts of their frequencies are numerically vanishing, allowing them to persist over an extended period. Besides, these modes are predominantly stationary in terms of the evolution of space…

Probing the quantum nature of gravity using a Bose-Einstein condensate; "Erste Abhandlung"
Soham Sen, Sunandan Gangopadhyay
https://arxiv.org/abs/2403.18460

Probing the quantum nature of gravity using a Bose-Einstein condensate; "Erste Abhandlung"
The effect of noise induced by gravitons has been investigated using a Bose-Einstein condensate. The gravitational wave perturbation is then considerd as a sum of discrete Fourier modes in the momentum space. Coming to an operatorial representation and quantizing the phase space variables via appropriately introduced canonincal commutation relations between the canonically conjugate variables corresponding to the graviton and bosonic part of the total system, one obtains a proper quantum gravit…

This https://arxiv.org/abs/2312.06751 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Localization of overdamped bosonic modes and transport in strange metals
A recent theory described strange metal behavior in a model of a Fermi surface coupled a two-dimensional quantum critical bosonic field with a spatially random Yukawa coupling. With the assumption of self-averaging randomness, similar to that in the Sachdev-Ye-Kitaev model, numerous observed properties of a strange metal were obtained for wide range of intermediate temperatures, including the linear-in-temperature resistivity. The Harris criterion implies that spatial fluctuations in the local …

The flavor structures on magnetized orbifold models and 4D modular symmetric models
Shota Kikuchi
https://arxiv.org/abs/2403.17280 https://

The flavor structures on magnetized orbifold models and 4D modular symmetric models
We study quark and lepton flavor structures on magnetized $T^2/\mathbb{Z}_2$ twisted orbifold model. There are 6,460 number of flavor models but most of them cannot lead to realistic flavor observables because of the difficulties on realizing mass hierarchies and small (large) mixing angles of quarks (leptons). We find that certain zero point patterns of zero-modes of fermions and Higgs fields give the flavor models being able to avoid these difficulties. We classify such flavor models and show…

This https://arxiv.org/abs/2311.04669 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Noise-Induced Collective Actuation in Active Solids
Collective actuation describes the spontaneous synchronized oscillations taking place in active solids, when the elasto-active feedback, that generically couples the reorientation of the active forces and the elastic stress, is large enough. In the absence of noise, collective actuation takes the form of a strong condensation of the dynamics on a specific pair of modes and their generalized harmonics. Here we report new experiments conducted with centimetric active elastic structures, where col…

Heisenberg Soft Hair on Robinson-Trautman Spacetimes
H. Adami, A. Parvizi, M. M. Sheikh-Jabbari, V. Taghiloo
https://arxiv.org/abs/2402.17658 https://

Heisenberg Soft Hair on Robinson-Trautman Spacetimes
We study 4 dimensional $(4d$) gravitational waves (GWs) with compact wavefronts, generalizing Robinson-Trautman (RT) solutions in Einstein gravity with an arbitrary cosmological constant. We construct the most general solution of the GWs in the presence of a causal, timelike, or null boundary when the usual tensor modes are turned off. Our solution space besides the shape and topology of the wavefront which is a generic compact, smooth, and orientable $2d$ surface $Σ$, is specified by a vector…

A Novel Proton Decay Signature at DUNE, JUNO, and Hyper-K
Florian Domingo, Herbi K. Dreiner, Dominik K\"ohler, Saurabh Nangia, Apoorva Shah
https://arxiv.org/abs/2403.18502 <…

A Novel Proton Decay Signature at DUNE, JUNO, and Hyper-K
Proton decay, although unobserved so far, is a natural expectation when attempting to explain the baryon asymmetry of the universe. $p\to K^+\barν$ or $p\to K^+\tildeχ_1^0$, with $\tildeχ_1^0$ a light exotic neutral particle, represent possible decay channels achievable in models of physics beyond the Standard Model, such as the MSSM with trilinear R-parity-violating terms, or the Standard Model extended by a heavy neutral lepton. Among the decay products of these modes, the neutral fermions…

Effective Sorting of Fractional Optical Vortex Modes
Zhengyang Mao, Haigang Liu, Xianfeng Chen
https://arxiv.org/abs/2404.12582 https://

Effective Sorting of Fractional Optical Vortex Modes
Mode sorter is the crucial component of the communication systems based on orbital angular momentum (OAM). However, schemes proposed so far can only effectively sort integer OAM (IOAM) modes. Here, we demonstrate the effective sorting of fractional OAM (FOAM) modes by utilizing the coordinate transformation method, which can convert FOAM modes to IOAM modes. The transformed IOAM modes are subsequently sorted by using a mode conversion method called topological charge matching. The validation of…

Spherical bispectrum expansion and quadratic estimators
Julien Carron, Antony Lewis
https://arxiv.org/abs/2404.16797 https://arxiv.or…

Spherical bispectrum expansion and quadratic estimators
We describe a general expansion of spherical (full-sky) bispectra into a set of orthogonal modes. For squeezed shapes, the basis separates physically-distinct signals and is dominated by the lowest moments. In terms of reduced bispectra, we identify a set of discrete polynomials that are pairwise orthogonal with respect to the relevant Wigner 3j symbol, and reduce to Chebyshev polynomials in the flat-sky (high-momentum) limit for both parity-even and parity-odd cases. For squeezed shapes, the f…

This https://arxiv.org/abs/2402.11016 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Holographic phenomenology via overlapping degrees of freedom
The holographic principle suggests that regions of space contain fewer physical degrees of freedom than would be implied by conventional quantum field theory. Meanwhile, in Hilbert spaces of large dimension $2^n$, it is possible to define $N \gg n$ Pauli algebras that are nearly anti-commuting (but not quite) and which can be thought of as "overlapping degrees of freedom". We propose to model the phenomenology of holographic theories by allowing field-theory modes to be overlapping, and derive …

This https://arxiv.org/abs/2305.12516 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Polarization modes of gravitational waves in generalized Proca theory
In this paper, we study polarization modes of gravitational waves in generalized Proca theory in the homogeneous and isotropic Minkowski background. The results show that the polarizations of gravitational waves depend on the parameter space of this gravity theory and can be divided into quite rich cases by parameters. In some parameter space, it only allows two tensor modes, i.e., the $+$ and $\times$ modes. In some parameter space, besides tensor modes, it also allows one scalar mode, or two …

This https://arxiv.org/abs/2311.10434 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

A model-independent measurement of the CKM angle $γ$ in partially reconstructed $B^{\pm} \to D^{*} h^{\pm}$ decays with $D \to K_{S}^{0} h^{+}h^{-}$ $(h=π, K)$
A measurement of $C\!P$-violating observables in $B^{\pm} \to D^{*} K^{\pm}$ and $B^{\pm} \to D^{*} π^{\pm}$ decays is made where the photon or neutral pion from the $D^{*} \to Dγ$ or $D^{*} \to Dπ^{0}$ decay is not reconstructed. The $D$ meson is reconstructed in the self-conjugate decay modes, $D \to K_{S}^{0} π^{+} π^{-}$ or $D \to K_{S}^{0} K^{+} K^{-}$. The distribution of signal yields in the $D$ decay phase space is analysed in a model-independent way. The measurement uses a data sa…

Broadband and fabrication-tolerant 3-dB couplers with topological valley edge modes
Guo-Jing Tang, Xiao-Dong Chen, Lu Sun, Chao-Heng Guo, Meng-Yu Li, Zhong-Tao Tian, Hou-Hong Chen, Hong-Wei Wang, Qi-Yao Sun, Ying-Di Pan, Xin-Tao He, Yi-Kai Su, Jian-Wen Dong
https://arxiv.org/abs/2403.16538…

Broadband and fabrication-tolerant 3-dB couplers with topological valley edge modes
3-dB couplers, which are commonly used in photonic integrated circuits for on-chip information processing, precision measurement, and quantum computing, face challenges in achieving robust performance due to their limited 3-dB bandwidths and sensitivity to fabrication errors. To address this, we introduce topological physics to nanophotonics, developing a framework for topological 3-dB couplers. These couplers exhibit broad working wavelength range and robustness against fabrication dimensional…

This https://arxiv.org/abs/2309.08653 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

What can galaxy shapes tell us about physics beyond the standard model?
The shapes of galaxies trace scalar physics in the late-Universe through the large-scale gravitational potential. Are they also sensitive to higher-spin physics? We present a general study into the observational consequences of vector and tensor modes in the early and late Universe, through the statistics of cosmic shear and its higher-order generalization, flexion. Higher-spin contributions arise from both gravitational lensing and intrinsic alignments, and we give the leading-order correlator…

This https://arxiv.org/abs/2308.06532 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Quasinormal modes of dark matter core-black hole spacetime
In the galactic core, when the scale of dark matter is small, the distribution of dark matter is that of a constant density dark matter core.Considering the case of a supermassive black hole coupled to a constant density dark matter core, we study the quasinormal modes of the black hole in the constant density dark matter core black hole system and calculate the quasinormal modes frequency of the black hole using the third order WKB approximation and the prony method.In addition, we study the e…

This https://arxiv.org/abs/2403.09834 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Area theorem for surface plasmons interacting of with resonant atoms
We show how the area theorem is applicable to the analytical description of the nonlinear interaction of surface plasmon modes with resonant two-level atoms. A closed analytical solution is obtained, which shows that surface plasmons can form long-propagating $2π$ pulses when interacting with an optically dense two-level atomic ensemble. The possible applications of the surface pulse area theorem and the conditions for the detection of $2π$ surface plasmon pulses are discussed.

This https://arxiv.org/abs/2402.10784 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Simultaneous symmetry breaking in spontaneous Floquet states: Floquet-Nambu-Goldstone modes, Floquet thermodynamics, and the time operator
We study simultaneous symmetry-breaking in a spontaneous Floquet state, focusing on the specific case of an atomic condensate. We first describe the quantization of the Nambu-Goldstone (NG) modes for a stationary state simultaneously breaking several symmetries of the Hamiltonian by invoking the generalized Gibbs ensemble, which enables a thermodynamical description of the problem. The quantization procedure involves a Berry-Gibbs connection, which depends on the macroscopic conserved charges a…

This https://arxiv.org/abs/2308.11215 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Resonant detectors of gravitational wave in the linear and quadratic generalized uncertainty principle framework
In this work, we consider a resonant bar detector of gravitational wave in the generalized uncertainty principle (GUP) framework with linear and quadratic momentum uncertainties. The phonon modes in these detectors vibrate due to the interaction with the incoming gravitational wave. In this uncertainty principle framework, we calculate the resonant frequencies and transition rates induced by the incoming gravitational waves on these detectors. We observe that the energy eigenstates and the eige…

This https://arxiv.org/abs/2401.16907 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Gauge and Scalar Boson Mediated Proton Decay in a Predictive SU(5) GUT Model
We assess proton decay signatures in the simplest viable $SU(5)$ model with regard to constraints on parameters governing the Standard Model fermion mass spectrum. Experimental signals for all eight two-body proton decay processes result from exchange of two gauge bosons, a single scalar leptoquark, or their combination. Consequently, it enables us to delve into an in-depth anatomy of proton decay modes and anticipate future signatures. Our findings dictate that observing a proton decay into $p…

Enhancement of spin-orbit interaction and nearly perfect spin-conversion by 1D photonic crystal with the anisotropic defect layer
Xianjun Wang, Yufu Liu, Yunlin Li, Langlang Xiong, Xunya Jiang
https://arxiv.org/abs/2402.15722

Enhancement of spin-orbit interaction and nearly perfect spin-conversion by 1D photonic crystal with the anisotropic defect layer
Although photon spin-orbit interaction (SOI) has been extensively studied, the vortex-conversion efficiency and the enhancement of spin Hall effect in abnormal modes in SOI remain to be investigated. Using an one-dimensional (1D) photonic crystal (PhC) system with the anisotropic defect layer(ADL), we firstly find that the generation efficiency of the vortex beam is close to 50\% when the number of periodic layers of the PhC reaches 5. Secondly, We also discussed the case where linearly polariz…

This https://arxiv.org/abs/2310.17208 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Entanglement in Cosmology
We compute the evolution of the entanglement entropy for a massless field within a spherical region throughout the inflationary period and the subsequent era of radiation domination, starting from the Bunch-Davies vacuum. In order to focus on the entanglement of modes that are directly accessible to observations, we impose an ultraviolet cutoff set by the wavelength of the last mode that exited the horizon at the end of inflation. The transition of each mode towards a squeezed state upon horizo…

This https://arxiv.org/abs/2401.12304 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

New Physics couplings from angular coefficient functions of $\bar B \to D^* (D π) \ell \bar ν_\ell$
The Belle Collaboration has recently measured the complete set of angular coefficient functions for the exclusive decays $\bar B \to D^* (D π) \ell \bar ν_\ell$, with $\ell=e,\,μ$, in four bins of the parameter $w=\displaystyle\frac{m_B^2+m_{D^*}^2-q^2}{2m_B m_{D^*}}$, with $q$ the lepton pair momentum. Under the assumption that physics beyond the Standard Model does not contribute to such modes, the measurements are useful to determine the hadronic form factors describing the $B \to D^*$ ma…

Quantum Scalar Field on Fuzzy de Sitter Space I. Field Modes and Vacua
Bojana Brkic, Ilija Buric, Maja Buric, Dusko Latas
https://arxiv.org/abs/2403.10634 …

Quantum Scalar Field on Fuzzy de Sitter Space I. Field Modes and Vacua
We study a scalar field on a noncommutative model of spacetime, the fuzzy de Sitter space, which is based on the algebra of the de Sitter group $SO(1,d)$ and its unitary irreducible representations. We solve the Klein-Gordon equation in $d=2,4$ and show, using a specific choice of coordinates and operator ordering, that all commutative field modes can be promoted to solutions of the fuzzy Klein-Gordon equation. To explore completeness of this set of modes, we specify a Hilbert space representat…

Deci-Hz gravitational waves from the self-interacting axion cloud around the rotating stellar mass black hole
Hidetoshi Omiya, Takuya Takahashi, Takahiro Tanaka, Hirotaka Yoshino
https://arxiv.org/abs/2404.16265

Deci-Hz gravitational waves from the self-interacting axion cloud around the rotating stellar mass black hole
Gravitational waves from condensates of ultra-light particles, such as axion, around rotating black holes are a promising probe to search for unknown physics. For this purpose, we need to characterize the signal to detect the gravitational waves, which requires tracking the evolution of the condensates, including various effects. The axion self-interaction causes the non-linear coupling between the superradiant modes, resulting in complicated branching of evolution. Most studies so far have con…

This https://arxiv.org/abs/2304.09363 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Characteristic modes of thick brane model: resonances and quasinormal modes
In this work, we investigate the gravitational quasinormal modes (QNMs) and the gravitational resonances of a thick brane model. We use the asymptotic iteration and shooting methods to obtain the quasinormal frequencies (QNFs) of the brane. On the other hand, we investigate the resonances and their evolution numerically. The results show that the oscillations of the resonances equal (up to numerical error) to the real parts of the QNFs, while the damping rates of the resonances equal to the ima…

This https://arxiv.org/abs/2205.05255 has been replaced.
link: https://scholar.google.com/scholar?q=a

Sound from extra dimension: quasinormal modes of thick brane
In this work, we investigate the quasinormal modes of a thick brane system. Considering the transverse-traceless tensor perturbation of the brane metric, we obtain the Schrödinger-like equation of the Kaluza-Klein modes of the tensor perturbation. Then we use the Wentzel-Kramers-Brillouin approximation and the asymptotic iteration method to solve this Schrödinger-like equation. We also study the numeric evolution of an initial wave packet against the thick brane. The results show that there i…

Quasinormal Modes of Near-Extremal Electric and Magnetic Black Branes
Swapnil Nitin Shah
https://arxiv.org/abs/2403.11640 https://arx…

Quasinormal Modes of Near-Extremal Electric and Magnetic Black Branes
Gauge-gravity duality provides a robust mathematical framework for studying the behavior of strongly coupled non-abelian plasmas both near and far away from thermodynamic equilibrium. In particular, their near-equilibrium transport coefficients such as viscosity, conductivity, diffusion constants, etc. can be determined from poles of the retarded Green's function which are the dissipative eigenmodes i.e., the quasinormal modes (QNMs) of the dual gravitational field equations. The AdS5/CFT4 corr…

This https://arxiv.org/abs/2310.11336 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Polarization modes of gravitational waves in general modified gravity: General metric theory and general scalar-tensor theory
In this paper, we establish a unified parameterized framework for analyzing the polarization modes of gravitational waves in the general metric theory (gravity is only described by the metric) and the general scalar-tensor theory (gravity is described by the metric and an additional scalar field). Specifically, we study the polarization modes of gravitational waves in the most general metric theory and general scalar-tensor theory that satisfy the following conditions: (1) Spacetime is four-dim…