Tootfinder

@seav@en.osm.town
2025-05-18 15:26:33

Finally! @…, the venerable lightweight JS tilemap display library, is gearing up for a 2.0.0 release! 🎉
https://leafletjs.com/2025/05/18/leafl

@arXiv_hepph_bot@mastoxiv.page
2025-06-19 09:35:38

Three loop master integrals for ${\mathcal{O}} (\alpha \alpha_s^2)$ corrections to quark form factor
Tanmoy Pati, Narayan Rana
https://arxiv.org/abs/2506.15363

Three loop master integrals for ${\mathcal{O}} (αα_s^2)$ corrections to quark form factor
We consider the three-loop mixed strong-electroweak (${\mathcal{O}}(αα_s^2)$) corrections to the quark form factor. We compute the master integrals which are appearing in the Feynman diagrams containing a single massive boson in the loop. We use the state-of-the-art method of differential equations to compute all 303 of them, expressing the results in terms of generalized polylogarithms. We encounter multiple square roots that cannot be simultaneously rationalized using a single transformatio…

@arXiv_astrophCO_bot@mastoxiv.page
2025-06-19 09:15:57

The effects of continuum fitting on Lyman-$\alpha$ forest correlations
Nicolas Busca, James Rich, Julian Bautista, Andrei Cuceu, Andreu Font-Ribera, Julien Guy, Hiram K. Herrera-Alcantar, Julianna Stermer, Christophe Balland, J. Aguilar, S. Ahlen, D. Bianchi, D. Brooks, T. Claybaugh, A. de la Macorra, P. Doel, S. Ferraro, J. E. Forero-Romero, E. Gazta\~naga, C. Gordon, G. Gutierrez, M. Ishak, R. Kehoe, D. Kirkby, A. Kremin, M. Landriau, L. Le Guillou, C. Magneville, P. Martini, R. Miqu…

The effects of continuum fitting on Lyman-$α$ forest correlations
Correlations of fluctuations of the flux in Lyman-$α$ forests of high-redshift quasars have been observed by the Baryonic Acoustic Oscillation Spectroscopy Survey (BOSS) and the Dark Energy Spectroscopy Instrument (DESI) survey where they have revealed the effects of baryon acoustic oscillations (BAO). In order to fit the correlation functions to a physical model and thereby constrain cosmological parameters, it is necessary to take into account the effects of fitting the observed spectra to a…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-18 09:26:51

Spectroscopic Ultraluminous Ly-alpha Luminosity Functions at z = 5.7 and z = 6.6 from HEROES: Evidence for Ionized Bubbles
A. J. Taylor, A. J. Barger, L. L. Cowie, E. M. Hu, A. Songaila
https://arxiv.org/abs/2506.13854

Spectroscopic Ultraluminous Ly-alpha Luminosity Functions at z = 5.7 and z = 6.6 from HEROES: Evidence for Ionized Bubbles
We present spectroscopic Ly$α$ luminosity functions (LFs) at z = 5.7 and z = 6.6 based on a large 209 source sample of Ly$α$ emitter (LAE) candidates identified in Subaru/Hyper Suprime-Cam narrowband imaging and confirmed with Keck II/DEIMOS spectroscopy over a multi-year observing campaign. After applying photometric and spectroscopic cuts to produce homogeneous samples, we use the resulting samples of 49 z = 5.7 and 56 z = 6.6 LAEs to compute spectroscopic LAE LFs at each redshift. We corre…

@arXiv_csGR_bot@mastoxiv.page
2025-06-18 08:21:10

ImmerseGen: Agent-Guided Immersive World Generation with Alpha-Textured Proxies
Jinyan Yuan, Bangbang Yang, Keke Wang, Panwang Pan, Lin Ma, Xuehai Zhang, Xiao Liu, Zhaopeng Cui, Yuewen Ma
https://arxiv.org/abs/2506.14315

ImmerseGen: Agent-Guided Immersive World Generation with Alpha-Textured Proxies
Automatic creation of 3D scenes for immersive VR presence has been a significant research focus for decades. However, existing methods often rely on either high-poly mesh modeling with post-hoc simplification or massive 3D Gaussians, resulting in a complex pipeline or limited visual realism. In this paper, we demonstrate that such exhaustive modeling is unnecessary for achieving compelling immersive experience. We introduce ImmerseGen, a novel agent-guided framework for compact and photorealist…

@raiders@darktundra.xyz
2025-06-10 00:06:43

Physicality Dominant Alpha Dog – Jaire Alexander, The Perfect Pete Carroll CB https://raiderramble.com/2025/06/09/physicality-dominant-alpha-dog-jaire-alexander-pete-carroll/

Physicality Dominant Alpha Dog - Jaire Alexander, The Perfect Pete Carroll CB
As of Monday, picture-perfect Pete Carroll cornerback Jaire Alexander is officially a free agent. His fit with the Las Vegas Raiders?

@arXiv_csCE_bot@mastoxiv.page
2025-06-10 16:17:19

This https://arxiv.org/abs/2502.16789 has been replaced.
link: https://scholar.google.com/scholar?q=a

AlphaAgent: LLM-Driven Alpha Mining with Regularized Exploration to Counteract Alpha Decay
Alpha mining, a critical component in quantitative investment, focuses on discovering predictive signals for future asset returns in increasingly complex financial markets. However, the pervasive issue of alpha decay, where factors lose their predictive power over time, poses a significant challenge for alpha mining. Traditional methods like genetic programming face rapid alpha decay from overfitting and complexity, while approaches driven by Large Language Models (LLMs), despite their promise,…

@arXiv_nuclth_bot@mastoxiv.page
2025-06-18 09:47:58

Quantitative predictions of alpha-charmonium correlation functions in high-energy collisions
Faisal Etminan
https://arxiv.org/abs/2506.14724 https://

Quantitative predictions of alpha-charmonium correlation functions in high-energy collisions
Two-body $ ^{4}{He}\left(α\right)$-charmonium $ \left(c\bar{c}\right) $ potentials in the single-folding potential (SFP) approach are built by using a first principles HAL QCD low-energy $ NJ/ψ$ and $ Nη_{c} $ interactions. It is found that the $ α-c\bar{c} $ system based on the spin-$ 1/2 $ $NJ/ψ$ appears to be loosely bound with a binding energy of $ \sim 0.1 $ MeV, while for those based on spin-$3/2$ $ NJ/ψ$, spin-$ 1/2 $ $Nη_{c}$ and the spin-averaged $ NJ/ψ$, no bound or resonance …

@arXiv_astrophCO_bot@mastoxiv.page
2025-06-17 11:21:53

Modeling of the High Column Density systems in The Lyman-Alpha Forest
T. Tan, J. Rich, E. Chaussidon, J. M. Le Goff, C. Balland, E. Armengaud, J. Aguilar, S. Ahlen, D. Bianchi, D. Brooks, T. Claybaugh, A. Cuceu, A. de la Macorra, P. Doel, J. E. Forero-Romero, E. Gazta\~naga, S. Gontcho A Gontcho, G. Gutierrez, H. K. Herrera-Alcantar, K. Honscheid, M. Ishak, D. Kirkby, T. Kisner, A. Kremin, M. Landriau, L. Le Guillou, M. Manera, P. Martini, R. Miquel, S. Nadathur, N. Palanque-Delabrouil…

Modeling of the High Column Density systems in The Lyman-Alpha Forest
The Lyman-alpha forests observed in the spectra of high-redshift quasars can be used as a tracer of the cosmological matter density to study baryon acoustic oscillations (BAO) and the Alcock-Paczynski effect. Extraction of cosmological information from these studies requires modeling of the forest correlations. While the models depend most importantly on the bias parameters of the intergalactic medium (IGM), they also depend on the numbers and characteristics of high-column-density systems (HCD…

@arXiv_mathFA_bot@mastoxiv.page
2025-06-18 09:03:59

A Minkowski problem for $\alpha$-concave functions via optimal transport
Xiao Li, Nguyen Nguyen, Deping Ye
https://arxiv.org/abs/2506.14735 https://…

A Minkowski problem for $α$-concave functions via optimal transport
The notions of the Euclidean surface area measure and the spherical surface area measure of $α$-concave functions in $\mathbb{R}^n$, with $-\frac{1}{n}<α<0$, are introduced via a first variation of the total mass functional with respect to the $α$-sum operation. Subsequently, these notions are extended to those for $α$-concave measures. We then study the Minkowski problem associated with the Euclidean surface area measures of $α$-concave measures via optimal transport.

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-19 09:20:07

Tracing the Milky Way: Calibrating chemical ages with high-precision Kepler data
G. Casali, J. Montalb\`an, A. Miglio, L. Casagrande, L. Magrini, C. Chiappini, A. Bragaglia, M. Matteuzzi, K. Brogaard, A. Stokholm, V. Grisoni, M. Tailo, E. Willett
https://arxiv.org/abs/2506.15546

Tracing the Milky Way: Calibrating chemical ages with high-precision Kepler data
Chemical clocks offer a powerful tool for estimating stellar ages from spectroscopic surveys. We present a new detailed spectroscopic analysis of 68 Kepler red giant stars to provide a suite of high-precision abundances along with asteroseismic ages with better than 10 percent precision from individual mode frequencies. We obtained several chemical clocks as ratios between s-process elements (Y, Zr, Ba, La, Ce) and alpha-elements (Mg, Ca, Si, Al, Ti). Our data show that [Ce/Mg] and [Zr/Ti] disp…

@arXiv_csGR_bot@mastoxiv.page
2025-06-19 13:47:02

Replaced article(s) found for cs.GR. https://arxiv.org/list/cs.GR/new
[1/1]:
- ImmerseGen: Agent-Guided Immersive World Generation with Alpha-Textured Proxies
Yuan, Yang, Wang, Pan, Ma, Zhang, Liu, Cui, Ma

@arXiv_csOH_bot@mastoxiv.page
2025-05-06 09:47:20

This https://arxiv.org/abs/2504.13423 has been replaced.
link: https://scholar.google.com/scholar?q=a

Mixed Fractional Information: Consistency of Dissipation Measures for Stable Laws
Symmetric alpha-stable (S alpha S) distributions with alpha<2 lack finite classical Fisher information. Building on Johnson's framework, we define Mixed Fractional Information (MFI) via the initial rate of relative entropy dissipation during interpolation between S alpha S laws with differing scales, v and s. We demonstrate two equivalent formulations for MFI in this specific S alpha S-to-S alpha S setting. The first involves the derivative D'(v) of the relative entropy between the two S alpha …

@arXiv_qfinCP_bot@mastoxiv.page
2025-06-18 15:26:26

Replaced article(s) found for q-fin.CP. https://arxiv.org/list/q-fin.CP/new
[1/1]:
QuantFactor REINFORCE: Mining Steady Formulaic Alpha Factors with Variance-bounded REINFORCE

@arXiv_mathPR_bot@mastoxiv.page
2025-06-17 11:50:09

Error Rates for Large Deviations in the domain of an $\alpha=1$ stable law
Jonny Imbierski, Dalia Terhesiu
https://arxiv.org/abs/2506.12443 https://…

Error Rates for Large Deviations in the domain of an $α=1$ stable law
We obtain error rates for large deviations of sums of i.i.d. random variables in, a particular case, of the domain of a non-symmetric infinite mean $α=1$-stable law. The focus of this work is on the method of proof via analytic techniques rather than the particular result.

@arXiv_hepph_bot@mastoxiv.page
2025-06-18 09:48:05

A Determination of $\alpha_s(m_Z)$ at aN$^3$LO$_{\bf QCD}\otimes {\bf NLO}_{\bf QED}$ Accuracy from a Global PDF Analysis
The NNPDF Collaboration, Richard D. Ball, Andrea Barontini, Juan Cruz-Martinez, Stefano Forte, Felix Hekhorn, Emanuele R. Nocera, Juan Rojo, Roy Stegeman
https://arxiv.org/abs/2506.13871

A Determination of $α_s(m_Z)$ at aN$^3$LO$_{\bf QCD}\otimes {\bf NLO}_{\bf QED}$ Accuracy from a Global PDF Analysis
We present a determination of the strong coupling $α_s(m_Z)$ from a global dataset including both fixed-target and collider data from deep-inelastic scattering and a variety of hadronic processes, with a simultaneous determination of parton distribution functions (PDFs) based on the NNPDF4.0 methodology. This determination is performed at NNLO and approximate N$^3$LO (aN$^3$LO) perturbative QCD accuracy, including QED corrections and a photon PDF up to NLO accuracy. We extract $α_s$ using two…

@arXiv_condmatsuprcon_bot@mastoxiv.page
2025-06-17 10:50:49

Unconventional superconductivity in a non-centrosymmetric ${\alpha}$-Mn alloy NbTaOs$_{2}$
R. K. Kushwaha, Arushi, S. Jangid, P. K. Meena, R. Stewart, A. D. Hillier, R. P. Singh
https://arxiv.org/abs/2506.12449

Unconventional superconductivity in a non-centrosymmetric $α$-Mn alloy NbTaOs$_{2}$
Non-centrosymmetric superconductors have emerged as a fascinating avenue for exploring unconventional superconductivity. Their broken inversion and time-reversal symmetries make them prime candidates for realizing the intrinsic superconducting diode effect (SDE). In this work, we synthesize the ternary non-centrosymmetric $α$-Mn alloy NbTaOs$_{2}$ and conduct a comprehensive investigation of its superconducting properties through resistivity, magnetization, specific heat and muon spin rotation…

@arXiv_astrophSR_bot@mastoxiv.page
2025-06-11 09:15:35

Precise Age For The Binary HD 21278 In The Young Alpha Persei Cluster
Christopher A. Danner, Eric L. Sandquist, Gail H. Schaefer, Luigi R. Bedin, Christopher D. Farrington, Cyprien Lanthermann, Stefan Kraus, Robert Klement, Narsireddy Anugu, John D. Monnier, Jerome A. Orosz, Isabelle Codron, Tyler Gardner, Mayra Gutierrez, Benjamin R. Setterholm, Jeremy Jones, Becky Flores
…

Precise Age For The Binary HD 21278 In The Young Alpha Persei Cluster
We present a study of the double-lined spectroscopic binary HD 21278 that contains one of the brightest main sequence stars in the young $α$ Persei open cluster. We analyzed new spectra and reanalyzed archived spectra to measure precise new radial velocity curves for the binary. We also obtained interferometric data using the CHARA Array at Mount Wilson to measure the sky positions of the two stars and the inclination of the $\sim$ 2 milliarcsecond orbit. We determine that the two stars have m…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-19 09:21:07

Chemical Abundances in the Metal-Poor Globular Cluster ESO 280-SC06: A Formerly Massive, Tidally Disrupted Globular Cluster
Sam A. Usman, Alexander P. Ji, Jandrie Rodriguez, Jeffrey D. Simpson, Sarah L. Martell, Ting S. Li, Ana Bonaca, Shivani Shah, Madeleine McKenzie
https://arxiv.org/abs/2506.15664

Chemical Abundances in the Metal-Poor Globular Cluster ESO 280-SC06: A Formerly Massive, Tidally Disrupted Globular Cluster
We present the first high-resolution abundance study of ESO 280-SC06, one of the least luminous and most metal-poor gravitationally bound Milky Way globular clusters. Using Magellan/MIKE spectroscopy for ten stars, we confirm the cluster's low metallicity as [Fe/H] = $-2.54 \pm 0.06$ and the presence of a nitrogen-enhanced star enriched by binary mass transfer. We determine abundances or abundance upper limits for 21 additional elements from the light, alpha, odd-Z, iron peak, and neutron-captu…

@arXiv_qbioMN_bot@mastoxiv.page
2025-06-17 11:48:26

Complex forming behaviour of {\alpha}, \b{eta} and {\gamma}-cyclodextrins with varying size probe particles in silico
N. R. M. Nelumdeniya, R. J. K. U. Ranatunga
https://arxiv.org/abs/2506.13115

Complex forming behaviour of α, \b{eta} and γ-cyclodextrins with varying size probe particles in silico
Cyclodextrins (CDs) are cyclic oligosaccharides composed of glucopyranose units bonded together to form a truncated cone that can make inclusion complexes with guest molecules. The α, \b{eta}, and γ-CDs, which respectively comprise six, seven or eight glucopyranose units, are used extensively in pharmaceutical formulations as functional excipients. The cavity sizes of all three natural CDs have been approximated using static structures but a growing consensus is that the CDs are flexible; mor…

@blakes7bot@mas.torpidity.net
2025-06-11 15:18:45

Series A, Episode 03 - Cygnus Alpha
GAN: As long as the door doesn't break.
VILA: Did you see? They killed Arco.
BLAKE: I don't understand. There's no response from the ship.
VILA: Perhaps these bracelets don't work any more.
https://blake.torpidity.net/m/103/543

Claude 3.7 describes the image as: "The image shows three people in what appears to be a dimly lit, industrial or spacecraft-like setting. They're wearing period costume that suggests a science fiction production from the late 1970s or early 1980s. The individuals are dressed in earth-toned clothing including vests and collared shirts, appropriate for a space-based drama. The composition shows them in close proximity, seemingly in the middle of a tense or important conversation. The lighting an…

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

@arXiv_quantph_bot@mastoxiv.page
2025-06-13 10:14:50

Quantifying coherence of quantum channels based on the generalized $\alpha$-$z$-relative R\'{e}nyi entropy
Jiaorui Fan, Zhaoqi Wu, Shao-Ming Fei
https://arxiv.org/abs/2506.10796

Quantifying coherence of quantum channels based on the generalized $α$-$z$-relative Rényi entropy
By using the Choi-Jamiołkowski isomorphism, we propose a well-defined coherence measure of quantum channels based on the generalized $α$-$z$-relative Rényi entropy. In addition, we present an alternative coherence measure of quantum channels by quantifying the commutativity between the channels and the completely dephasing channels with the generalized $α$-$z$-relative Rényi entropy. Some elegant properties of the measures are illustrated in detail. Explicit formulas of these coherence mea…

@arXiv_mathGN_bot@mastoxiv.page
2025-05-16 07:24:44

SC*-Regular spaces and some functions
Neeraj Kumar Tomar, Amit Ujlayan, M. C. Sharma
https://arxiv.org/abs/2505.09951 https://arxiv.o…

SC*-Regular spaces and some functions
This paper introduces a novel class of topological spaces, termed SC*-regular spaces, which are defined using SC*-open sets. We explore their fundamental properties and examine their connections with existing regularity concepts, such as regular, almost, softly, weakly, alpha, zeta, and generalized-regular spaces respectively. Furthermore, we examined and define, analyze generalized SC*-closed sets and SC*-generalized closed functions, establishing key properties and preservation theorems. Seve…

@arXiv_hepph_bot@mastoxiv.page
2025-06-18 09:48:54

Theory Uncertainties in the Extraction of $\alpha_s$ from Drell-Yan at Small Transverse Momentum
Thomas Cridge, Giulia Marinelli, Frank J. Tackmann
https://arxiv.org/abs/2506.13874

Theory Uncertainties in the Extraction of $α_s$ from Drell-Yan at Small Transverse Momentum
We perform a detailed pseudodata study to estimate the expected theory uncertainty in the extraction of the strong coupling constant, $α_s(m_Z)$, from a fit to the measured Drell-Yan transverse momentum ($q_T$) spectrum at small $q_T \ll m_Z$. We consider two approaches to estimate the dominant perturbative uncertainties. We first discuss that the traditional approach based on varying unphysical scales is insufficient here because it cannot correctly account for bin-by-bin theory correlations …

@arXiv_eessSY_bot@mastoxiv.page
2025-06-10 09:09:22

Towards Data-Driven Model-Free Safety-Critical Control
Zhe Shen, Yitaek Kim, Christoffer Sloth
https://arxiv.org/abs/2506.06931 https://

Towards Data-Driven Model-Free Safety-Critical Control
This paper presents a framework for enabling safe velocity control of general robotic systems using data-driven model-free Control Barrier Functions (CBFs). Model-free CBFs rely on an exponentially stable velocity controller and a design parameter (e.g. alpha in CBFs); this design parameter depends on the exponential decay rate of the controller. However, in practice, the decay rate is often unavailable, making it non-trivial to use model-free CBFs, as it requires manual tuning for alpha. To ad…

@arXiv_mathOC_bot@mastoxiv.page
2025-06-12 08:40:21

$C^{1,\alpha}$-regularity for Schr\"odinger potentials of Shannon-entropy regularized Optimal Transport
Sumiya Baasandorj, Simone Di Marino, Augusto Gerolin
https://arxiv.org/abs/2506.09302

$C^{1,α}$-regularity for Schrödinger potentials of Shannon-entropy regularized Optimal Transport
We provide the stability of $C^{1,α}$ regularity of Schrödinger potentials of Boltzmann-Shannon entropy regularized Optimal Transport under the classical assumption of marginals supported on bounded convex sets and whose densities are bounded above and below.

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-06-05 07:29:50

The isostructural alpha-gamma phase transition in cerium from the perspective of meta-generalized gradient approximations
Ashesh Giri, Chandra Shahi, Adrienn Ruzsinszky
https://arxiv.org/abs/2506.03578

The isostructural alpha-gamma phase transition in cerium from the perspective of meta-generalized gradient approximations
Meta-generalized gradient approximations (meta-GGAs) on the third rung of the functional hierarchy are gaining increasing relevance for the electronic structure. Meta-GGAs are constructed from numerous ingredients including the orbital kinetic energy density that make them more flexible than generalized gradient approximations (GGAs) including the heavily used PBE-GGA. Still, most meta-GGAs cope with the expected limitations of a semilocal density functional when band gaps or localization of el…

@arXiv_physicsplasmph_bot@mastoxiv.page
2025-06-10 09:53:33

A Multiscale Eulerian Vlasov-Rosenbluth-Fokker-Planck Algorithm for Thermonuclear Burning Plasmas
Benjamin L. Reichelt, William T. Taitano, Brett D. Keenan, Luis Chacon, Andrei N. Simakov, Steven E. Anderson, Hans R. Hammer
https://arxiv.org/abs/2506.06672

A Multiscale Eulerian Vlasov-Rosenbluth-Fokker-Planck Algorithm for Thermonuclear Burning Plasmas
Accurate treatment of energetic fusion byproducts in laboratory plasmas often requires a kinetic description, owing to their large birth kinetic energy and long mean-free-paths compared with the characteristic system scale lengths. For example, alpha particles produced by deuterium--tritium fusion reactions are born at high energies (\SI{3.5}{MeV}) and predominantly slow down through interactions with electrons traveling at comparable speeds. As an alpha particle slows, its distribution collaps…

@arXiv_mathGM_bot@mastoxiv.page
2025-06-03 07:31:13

Some results on generalized Hukuhara diamond-{\alpha} derivative and integral of fuzzy valued functions and on time scales
Selami Baye\u{g}, Funda Raziye Mert, Billur Kaymak\c{c}alan
https://arxiv.org/abs/2506.00016

Some results on generalized Hukuhara diamond-α derivative and integral of fuzzy valued functions and on time scales
In this paper, we define generalized Hukuhara diamond-alpha integral for fuzzy functions on time scales and obtain some of its fundamental properties and also we establish the relationship between diamond-alpha differentiation and integration.

@seeingwithsound@mas.to
2025-06-03 19:19:02

(YouTube playlist) Some 15 years after receiving his Dobelle brain implant for restoring vision, Jens ("Patient Alpha") tried The vOICe vision BCI https://www.youtube.com/playlist?list=PLmrvukzbS44SMVxMLRpd-_iTpy_Cj5liB Will Neuralink Blinds…

@axbom@axbom.me
2025-06-01 04:49:41

@… @… I understand it to refer to someone who is significantly more attractive than everyone else, and likely originates from AMOG (Alpha-Man Of Group).

@arXiv_csLO_bot@mastoxiv.page
2025-06-09 07:51:02

Nominal Equational Rewriting and Narrowing
Mauricio Ayala-Rinc\'on (University of Bras\'ilia, Brazil), Maribel Fern\'andez (King's College London, UK), Daniele Nantes-Sobrinho (University of Bras\'ilia, Brazil,Imperial College London, UK), Daniella Santaguida (University of Bras\'ilia, Brazil)
https://arx…

Nominal Equational Rewriting and Narrowing
Narrowing is a well-known technique that adds to term rewriting mechanisms the required power to search for solutions to equational problems. Rewriting and narrowing are well-studied in first-order term languages, but several problems remain to be investigated when dealing with languages with binders using nominal techniques. Applications in programming languages and theorem proving require reasoning modulo alpha-equivalence considering structural congruences generated by equational axioms, suc…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-18 09:55:54

ODIN: The LAE Ly{\alpha} Luminosity Function over Cosmic Time and Environmental Density
Gautam Nagaraj, Robin Ciardullo, Caryl Gronwall, Vandana Ramakrishnan, Kyoung-Soo Lee, Eric Gawiser, Nicole M. Firestone, Govind Ramgopal, J. Aguilar, Steven Ahlen, Davide Bianchi, David Brooks, Francisco Javier Castander, Todd Claybaugh, Andrei Cuceu, Axel de la Macorra, Arjun Dey, Biprateep Dey, Peter Doel, Jaime Forero-Romero, Enrique Gaztanaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Hiram K.…

ODIN: The LAE Lyα Luminosity Function over Cosmic Time and Environmental Density
The ubiquity and relative ease of discovery make $2\lesssim z\lesssim 5$ Ly$α$ emitting galaxies (LAEs) ideal tracers for cosmology. In addition, because Ly$α$ is a resonance line, but frequently observed at large equivalent width, it is potentially a probe of galaxy evolution. The LAE Ly$α$ luminosity function (LF) is an essential measurement for making progress on both of these aspects. Although several studies have computed the LAE LF, very few have delved into how the function varies wit…

@arXiv_astrophCO_bot@mastoxiv.page
2025-06-17 11:19:14

21 cm Signal from the Thermal Evolution of Lyman-$\alpha$ during Cosmic Dawn
Janakee Raste, Shiv K. Sethi
https://arxiv.org/abs/2506.12827 https://

21 cm Signal from the Thermal Evolution of Lyman-$α$ during Cosmic Dawn
The Lyman-$α$ photons couple the spin temperature of neutral hydrogen (HI) to the kinetic temperature during the era of cosmic dawn. During this process, they also exchange energy with the medium, heating and cooling the HI. In addition, we expect X-ray photons to heat the mostly neutral gas during this era. We solve this coupled system (Lyman-$α$-HI system along with X-ray heating) for a period of 500 Myr (redshift range $8

@arXiv_csSI_bot@mastoxiv.page
2025-06-10 09:18:22

An $\alpha$-triangle eigenvector centrality of graphs
Zhang Qingying, Sun Lizhu, Bu Changjiang
https://arxiv.org/abs/2506.07026 https://

An $α$-triangle eigenvector centrality of graphs
Centrality represents a fundamental research field in complex network analysis, where centrality measures identify important vertices within networks. Over the years, researchers have developed diverse centrality measures from varied perspectives. This paper proposes an $α$-triangle eigenvector centrality ($α$TEC), which is a global centrality measure based on both edge and triangle structures. It can dynamically adjust the influence of edges and triangles through a parameter $α$ ($α\in (0,…

@blakes7bot@mas.torpidity.net
2025-06-11 12:16:37

Series A, Episode 01 - The Way Back
MORAG: What we need is something to discredit him. If he could be deported to Cygnus Alpha .... Doctor, am I right in thinking you can create experiences, implant them into a subject, who will then believe that they really happened?
HAVANT: Of course. In fact, creating an illusion of reality is quite simple.

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

@arXiv_quantph_bot@mastoxiv.page
2025-06-12 10:08:01

Uncertainty relations for unified ($\alpha$,$\beta$)-relative entropy of coherence under mutually unbiased equiangular tight frames
Baolong Cheng, Zhaoqi Wu
https://arxiv.org/abs/2506.09779

Uncertainty relations for unified ($α$,$β$)-relative entropy of coherence under mutually unbiased equiangular tight frames
Uncertainty relations based on quantum coherence is an important problem in quantum information science. We discuss uncertainty relations for averaged unified ($α$,$β$)-relative entropy of coherence under mutually unbiased equiangular tight frames, and derive an interesting result for different parameters. As consequences, we obtain corresponding results under mutually unbiased bases, equiangular tight frames or based on Tsallis $α$- relative entropies and Rényi-$α$ relative entropies. We …

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-18 09:55:19

Chemical Signatures of Population III Stars in Damped Lyman-$\alpha$ Absorption Systems at $z \approx 6$
Eli Visbal, Greg L. Bryan, Zoltan Haiman
https://arxiv.org/abs/2506.14482 …

Chemical Signatures of Population III Stars in Damped Lyman-$α$ Absorption Systems at $z \approx 6$
Recently, Sodini et al. (2024) presented a sample of OI damped Lyman-$α$ absorption system (DLA) analogs at $z\sim6$ that contain possible chemical signatures of Population III (Pop III) stars. In this paper, we use an N-body simulation-based semi-analytic model of the first stars and galaxies to predict the impact of Pop III stars on high-redshift DLAs. These Pop III DLA predictions are the first to include a number of important physical effects such as Lyman-Werner (LW) feedback, reionizatio…

@arXiv_nuclth_bot@mastoxiv.page
2025-06-17 11:14:41

Imprint of $\alpha$-clustering on nucleon-nucleon correlations in relativistic light ion collisions
Hadi Mehrabpour
https://arxiv.org/abs/2506.12673 https:…

Imprint of $α$-clustering on nucleon-nucleon correlations in relativistic light ion collisions
This study investigates the influence of $α$-cluster structures in relativistic light nuclear collisions. Using a cluster framework, the characteristics of the nucleonic configurations of $^{16}$ O and $^{20}$ Ne are extracted as predicted by various \textit{ab initio} models, including Nuclear Lattice Effective Field Theory (NLEFT), Variational Monte Carlo (VMC), and the Projected Generator Coordinate Method (PGCM). Additionally, I analyze configurations derived from a three-parameter Fermi (…

@arXiv_nuclex_bot@mastoxiv.page
2025-06-03 07:49:26

Potential absence of observed $\pi^2$ linear-chain structures in $^{14}$O via $^{10}$C($\alpha,\alpha$) resonant scattering
J. Bishop, A. Hollands, Tz. Kokolova, G. V. Rogachev, C. Wheldon, E. Aboud, S. Ahn, M. Barbui, N. Curtis, J. Hooker, C. Hunt, H. Jayatissa, E. Koshchiy, S. Pirrie, B. T. Roeder, A. Saastamoinen, S. Upadhyayula
https://

Potential absence of observed $π^2$ linear-chain structures in $^{14}$O via $^{10}$C($α,α$) resonant scattering
Background: The preference for light nuclear systems to coagulate into $α$-particle clusters has been well-studied. The possibility of a linear chain configuration of $α$-particles would allow for a new way to study this phenomenon. Purpose: A rotational band of states in $^{14}$C has been claimed showing a $π^2$ linear chain structure. The mirror system, $^{14}$O, has been studied here to examine how this linear chain structure is affected by replacing the valence neutrons with protons. Met…

@arXiv_condmatsoft_bot@mastoxiv.page
2025-06-10 10:41:52

Crossover between Solid-like and Liquid-like Behavior in Supercooled Liquids
X. R. Tian, D. M. Zhang, B. Zhang, D. Y. Sun, X. G. Gong
https://arxiv.org/abs/2506.06957

Crossover between Solid-like and Liquid-like Behavior in Supercooled Liquids
In supercooled liquids, at a temperature between the glass transition temperature Tg and the melting point Tm, thermodynamic properties remain continuous, while dynamic behavior exhibits anomalies. The origin of such thermodynamics-dynamic decoupling has long been a puzzle in the field of glass researches. In this study, we show that the ratio of the alpha-relaxation time associated with the relative and center-of-mass coordinate of nearest-neighbor atomic pairs can effectively characterize the…

@arXiv_mathNA_bot@mastoxiv.page
2025-06-06 09:56:59

This https://arxiv.org/abs/2506.03947 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Block Alpha-Circulant Preconditioners for All-at-Once Diffusion-Based Covariance Operators
Covariance matrices are central to data assimilation and inverse methods derived from statistical estimation theory. Previous work has considered the application of an all-at-once diffusion-based representation of a covariance matrix operator in order to exploit inherent parallellism in the underlying problem. In this paper, we provide practical methods to apply block $α$-circulant preconditioners to the all-at-once system for the case where the main diffusion operation matrix cannot be readil…

@arXiv_statME_bot@mastoxiv.page
2025-06-03 08:06:08

e-GAI: e-value-based Generalized $\alpha$-Investing for Online False Discovery Rate Control
Yifan Zhang, Zijian Wei, Haojie Ren, Changliang Zou
https://arxiv.org/abs/2506.01452

e-GAI: e-value-based Generalized $α$-Investing for Online False Discovery Rate Control
Online multiple hypothesis testing has attracted a lot of attention in many applications, e.g., anomaly status detection and stock market price monitoring. The state-of-the-art generalized $α$-investing (GAI) algorithms can control online false discovery rate (FDR) on p-values only under specific dependence structures, a situation that rarely occurs in practice. The e-LOND algorithm (Xu & Ramdas, 2024) utilizes e-values to achieve online FDR control under arbitrary dependence but suffers from …

@arXiv_mathDG_bot@mastoxiv.page
2025-06-02 07:25:17

Branched $\alpha$-combinatorial Ricci flows on closed surfaces with Euler characteristic $\chi\le 0$
Wenjun Li, Rongyuan Liu, Guohao Chen, Aijin Lin
https://arxiv.org/abs/2505.24762

Branched $α$-combinatorial Ricci flows on closed surfaces with Euler characteristic $χ\le 0$
This paper investigates branched $α$-flows on weighted triangulated closed surfaces with Euler characteristic $χ\leq 0$, focusing on establishing their connections with topological (combinatorial) and geometric structures. In Euclidean ($\mathbb{E}^2$) and hyperbolic ($\mathbb{H}^2$) geometries, we define branched $α$-curvatures and corresponding branched $α$-flows. By introducing branched $α$-potentials, we prove the existence and uniqueness of constant branched $α$-metrics through…

@arXiv_quantph_bot@mastoxiv.page
2025-06-12 10:08:21

Two imaginarity monotones induced by unified $(\alpha,\beta)$-relative entropy
Chuanfa Wu, Zhaoqi Wu
https://arxiv.org/abs/2506.09799 https://

Two imaginarity monotones induced by unified $(α,β)$-relative entropy
Complex numbers play a pivotal role in both mathematics and physics, particularly in quantum mechanics, and are extensively utilized to depict the behavior of microscopic particles. Recognizing the significance of complex numbers, a framework of imaginarity resource theory has recently been established. In this work, we propose two types of imaginarity monotones induced by the unified $(α,β)$-relative entropy and investigate their properties. Moreover, we give explicit examples to illustrate …

@arXiv_condmatmtrlsci_bot@mastoxiv.page
2025-06-13 09:35:00

Topotactic oxidation of Ruddlesden-Popper nickelates reveals new structural family: oxygen-intercalated layered perovskites
Dan Ferenc Segedin, Jinkwon Kim, Harrison LaBollita, Nicole K. Taylor, Kyeong-Yoon Baek, Suk Hyun Sung, Ari B. Turkiewicz, Grace A. Pan, Abigail Y. Jiang, Maria Bambrick-Santoyo, Tobias Schwaigert, Casey K. Kim, Anirudh Tenneti, Alexander J. Grutter, Shin Muramoto, Alpha T. N'Diaye, Ismail El Baggari, Donald A. Walko, Hua Zhou, Charles M. Brooks, Antia S. Bota…

Topotactic oxidation of Ruddlesden-Popper nickelates reveals new structural family: oxygen-intercalated layered perovskites
Layered perovskites such as the Dion-Jacobson, Ruddlesden-Popper, and Aurivillius families host a wide range of correlated electron phenomena, from high-temperature superconductivity to multiferroicity. Here we report a new family of layered perovskites, realized through topotactic oxygen intercalation of La_{n+1}Ni_{n}O_{3n+1} (n=1-4) Ruddlesden-Popper nickelate thin films grown by ozone-assisted molecular-beam epitaxy. Post-growth ozone annealing induces a large c-axis expansion - 17.8% for L…

@arXiv_astrophEP_bot@mastoxiv.page
2025-06-06 07:28:23

Searching for helium escape and a low density atmosphere around the 120 Myr old sub-Neptune HIP94235b using CRIRES
Ava Morrissey, George Zhou, Chelsea X. Huang, Duncan Wright, Neale Gibson, Keighley E. Rockcliffe, Elisabeth R. Newton, James Kirk, Daniel Bayliss
https://arxiv.org/abs/2506.04605

Searching for helium escape and a low density atmosphere around the 120 Myr old sub-Neptune HIP94235b using CRIRES+
Atmospheric mass loss is thought to induce the bimodality in the small planet population as we observe it today. Observationally, active mass loss can be traced by excess absorption in spectral lines of lighter species, such as the hydrogen Ly-alpha line and the metastable helium triplet. We search for helium escape from the young (120Myr old) sub-Neptune HIP94235b. We obtained two transit observations of HIP94235b using the CRyogenic InfraRed Echelle Spectrograph (CRIRES+) on the Very Large Te…

@arXiv_astrophCO_bot@mastoxiv.page
2025-06-11 08:47:15

Unified reconstruction of the Lyman-alpha power spectrum with Hamiltonian Monte Carlo
N. G. Kara\c{c}ayl{\i}, P. L. Taylor
https://arxiv.org/abs/2506.08198

Unified reconstruction of the Lyman-alpha power spectrum with Hamiltonian Monte Carlo
The complex geometry of the Ly$α$ forest data has motivated the use of various two-point statistics as alternatives to the three-dimensional power spectrum ($P_{\mathrm{3D}}$), which carries cosmological information in Fourier space. On large scales, the three-dimensional correlation function ($ξ_\mathrm{3D}$) has provided robust measurements of the baryon acoustic oscillation (BAO) scale at 150 Mpc. On smaller scales, the one-dimensional power spectrum, $P_{\mathrm{1D}}(k_\|)$, has been…

@arXiv_eessSY_bot@mastoxiv.page
2025-06-10 16:58:29

This https://arxiv.org/abs/2504.01759 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

Alpha-Beta HMM: Hidden Markov Model Filtering with Equal Exit Probabilities and a Step-Size Parameter
The hidden Markov model (HMM) provides a powerful framework for inference in time-varying environments, where the underlying state evolves according to a Markov chain. To address the optimal filtering problem in general dynamic settings, we propose the $αβ$-HMM algorithm, which simplifies the state transition model to a Markov chain with equal exit probabilities and introduces a step-size parameter to balance the influence of observational data and the model. By analyzing the algorithm's dyna…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-12 09:26:11

Counterculture Stars: Slow and Retrograde Stars with Low-Alpha Disk Abundances
Carrie Filion, Michael S. Petersen, Danny Horta, Kathryne J. Daniel, Madeline Lucey, Adrian M. Price-Whelan
https://arxiv.org/abs/2506.09927

Counterculture Stars: Slow and Retrograde Stars with Low-Alpha Disk Abundances
The Milky Way is home to a thin disk that can be defined via kinematics and/or elemental abundances. The elemental abundance-defined thin disk, also called the low-alpha disk, is generally thought to be comprised of stars on planar, circular orbits that approximate the circular velocity curve. While this is an apt description for the majority of stars with thin-disk-like abundances, there are a number of interesting exceptions. In this analysis, we identify and investigate $\sim 70$ stars with …

@arXiv_mathAP_bot@mastoxiv.page
2025-06-02 07:24:55

$C^{1,\alpha}$ regularity of the solution for the obstacle problem for the linearized Monge-Amp\`ere operator
Meng Ji
https://arxiv.org/abs/2505.24410 http…

$C^{1,α}$ regularity of the solution for the obstacle problem for the linearized Monge-Ampère operator
In this paper, we study the regularity of the solution for the obstacle problem associated with the linearized Monge-Ampère operator: \begin{align*} \begin{cases} &u\geqφ\text{\quad in } Ω &L_{ w}u=\tr( W D^{2}u)\leq 0 \text{\quad in } Ω &L_{ w}u= 0 \text{\quad in } \{u>φ\} &u=0 \text{\quad on } \partialΩ, \end{cases} \end{align*} where $ W=(\det D^{2} w) D^{2} w^{-1}$ is the matrix of cofactor of $D^{2} w$, $w$ satisfies $λ\leq \det D^{2} w \leq Λ$ and $ w=0$ on $\partial �…

@arXiv_astrophSR_bot@mastoxiv.page
2025-06-11 09:44:15

Responses of a Coronal Hole to a Fast Flare-Driven Coronal Wave
Xiaofan Zhang, Huadong Chen, Guiping Zhou, Li Feng, Yang Su, Jinhan Guo, Leping Li, Wei Lin, Suli Ma, Yuandeng Shen, Ruisheng Zheng, Suo Liu, Xianyong Bai, Yuanyong Deng, Jingxiu Wang
https://arxiv.org/abs/2506.08863

Responses of a Coronal Hole to a Fast Flare-Driven Coronal Wave
Coronal waves, significant solar phenomena, act as diagnostic tools for scientists studying solar atmosphere properties. Here, we present a novel observation detailing how a coronal wave event, associated with an X5.0 class flare, influenced the properties of an adjacent coronal hole through interaction. The coronal wave was observed in both extreme ultraviolet observations from the Atmospheric Imaging Assembly aboard the Solar Dynamics Observatory and Lyman-alpha observations from the Solar Di…

@@arXiv_physicsatomph_bot@mastoxiv.page@mastoxiv.page
2025-06-05 07:33:04

Relativistic recoil corrections of order \boldmath$m(Z\alpha)^6(m/M)$: Hydrogen-like atom and hydrogen molecular ion
Vladimir I Korobov
https://arxiv.org/abs/2506.03644

@arXiv_qfinCP_bot@mastoxiv.page
2025-05-23 07:37:56

Interpretable Machine Learning for Macro Alpha: A News Sentiment Case Study
Yuke Zhang
https://arxiv.org/abs/2505.16136 https://arxiv…

Interpretable Machine Learning for Macro Alpha: A News Sentiment Case Study
This study introduces an interpretable machine learning (ML) framework to extract macroeconomic alpha from global news sentiment. We process the Global Database of Events, Language, and Tone (GDELT) Project's worldwide news feed using FinBERT -- a Bidirectional Encoder Representations from Transformers (BERT) based model pretrained on finance-specific language -- to construct daily sentiment indices incorporating mean tone, dispersion, and event impact. These indices drive an XGBoost classifier…

@arXiv_physicscompph_bot@mastoxiv.page
2025-06-02 07:33:46

Variation of Bose surface by Filling in Cooper pair Bose metal
Jiahao Su, Ji Liu, Jianyu Li, Zhangkai Cao, Tao Ying, Ho-Kin Tang
https://arxiv.org/abs/2505.24405

Variation of Bose surface by Filling in Cooper pair Bose metal
The Cooper pair Bose metal (CPBM) is a non-superfluid quantum phase in which uncondensed fermion pairs form a "Bose surface" in momentum space. We investigate the CPBM in the two-dimensional spin-anisotropic attractive Hubbard model by tuning the next-nearest-neighbor (NNN) hopping t', carrier filling n, and spin anisotropy alpha, using large-scale constrained-path quantum Monte Carlo simulations. A moderate NNN hopping (t'/t = 0.2) substantially enlarges the CPBM region: the phase extends into…

@arXiv_astrophCO_bot@mastoxiv.page
2025-06-13 08:52:20

$\alpha$-attractor inflation modified by GUP in light of ACT observations
Hana Heidarian, Milad Solbi, Soma Heydari, Kayoomars Karami
https://arxiv.org/abs/2506.10547

$α$-attractor inflation modified by GUP in light of ACT observations
Here, the $α$-attractor inflation is investigated within a framework incorporating a minimal measurable length, as implemented by the Generalized Uncertainty Principle (GUP). The GUP modifications to the Friedmann equations and cosmological perturbation parameters are employed to assess the model observational viability against recent high-precision data, primarily from the Atacama Cosmology Telescope Data Release 6 (ACT DR6) combined with Planck, DESI BAO, and BICEP/Keck 2018 observations (P-…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-11 09:33:35

Ly$\alpha$ radiative transfer modeling for 163 MUSE Ly$\alpha$-emitting galaxies at $z=$3--6
Sangeun Yu, Hyunmi Song, Kwang-il Seon
https://arxiv.org/abs/2506.08290

Ly$α$ radiative transfer modeling for 163 MUSE Ly$α$-emitting galaxies at $z=$3--6
We utilized Ly$α$ radiative transfer calculations from \citet{Song2020} to investigate the properties of extended Ly$α$ halos around star-forming galaxies in the \textit{Hubble} Ultra Deep Field, observed by the Multi-Unit Spectroscopic Explorer. Expanding on the work of \citet{Song2020}, which was limited to eight galaxies, we derived best-fit models for a significantly larger sample of 163 galaxies, which successfully reproduced both their Ly$α$ spectra and surface brightness profiles (SBP…

@arXiv_hepph_bot@mastoxiv.page
2025-06-10 11:15:22

Determining $\alpha_s(m_Z)$ from the Heavy Jet Mass distribution
Miguel A. Benitez
https://arxiv.org/abs/2506.07723 https://arxiv.org…

Determining $α_s(m_Z)$ from the Heavy Jet Mass distribution
We present a state-of-the-art analysis on determining the strong coupling constant $α_s(m_Z)$ from available $e^+e^-$ data for the Heavy Jet Mass (HJM) distribution. Dijet resummation is supplemented with additional resummation of shoulder logarithms appearing around the symmetric 3-jet configuration of the HJM spectrum. In addition to $α_s(m_Z)$ we further obtain numerical results for two non-perturbative parameters, $Ω_1^ρ$ and $Θ_1$, encompassing effects from dijet and trijet hadronizat…

@arXiv_csGR_bot@mastoxiv.page
2025-06-02 07:18:23

TC-GS: A Faster Gaussian Splatting Module Utilizing Tensor Cores
Zimu Liao, Jifeng Ding, Rong Fu, Siwei Cui, Ruixuan Gong, Li Wang, Boni Hu, Yi Wang, Hengjie Li, XIngcheng Zhang, Hui Wang
https://arxiv.org/abs/2505.24796

TC-GS: A Faster Gaussian Splatting Module Utilizing Tensor Cores
3D Gaussian Splatting (3DGS) renders pixels by rasterizing Gaussian primitives, where conditional alpha-blending dominates the time cost in the rendering pipeline. This paper proposes TC-GS, an algorithm-independent universal module that expands Tensor Core (TCU) applicability for 3DGS, leading to substantial speedups and seamless integration into existing 3DGS optimization frameworks. The key innovation lies in mapping alpha computation to matrix multiplication, fully utilizing otherwise idle …

@arXiv_eessSY_bot@mastoxiv.page
2025-06-06 09:45:38

This https://arxiv.org/abs/2504.01759 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

@arXiv_condmatother_bot@mastoxiv.page
2025-05-29 07:29:54

Ultrasonic spin pumping in the antiferromagnetic acoustic resonator $\alpha-\text{Fe}_2\text{O}_3$
David A. Gabrielyan, Dmitry A. Volkov, Tatyana V. Bogdanova, Kristina D. Samoylenko, Anton V. Matasov, Ansar R. Safin, Dmitry V. Kalyabin, Alexey A. Klimov, Leonid M. Krutyansky, Vladimir L. Preobrazhensky, Sergey A. Nikitov
https://

Ultrasonic spin pumping in the antiferromagnetic acoustic resonator $α-\text{Fe}_2\text{O}_3$
Recent advances in magnon spintronics have ignited interest in the interactions between the spin and elastic subsystems of magnetic materials. These interactions suggest a dynamic connection between collective excitations of spins, quantized as magnons, and elastic waves generated by perturbations in the crystal lattice, quantized as phonons. Both magnons and their associated magnon-phonon excitations can act as sources of spin pumping from magnetic materials into non-magnetic metals. Although …

@arXiv_physicsplasmph_bot@mastoxiv.page
2025-06-05 09:58:17

This https://arxiv.org/abs/2410.03590 has been replaced.
initial toot: https://mastoxiv.page/@a…

Enhancement to Fusion Reactivity in Sheared Flows
Sheared flow increases the reactivity of fusion plasma. In unmagnetized plasma with flow gradients comparable to the mean free path of reacting ions, fusion reactivity can be more than doubled. The effect is of particular relevance to inertial confinement fusion (ICF), where it allows implosion kinetic energy to contribute to the fusion burn even before thermalizing. In fast ignition, this allows remarkable energy savings because colder fuel stops alpha particles more quickly, enabling ignition…

@arXiv_nlinPS_bot@mastoxiv.page
2025-05-27 07:41:40

Fractional Nonlinear Schrodinger Equation Revisited
Morteza Nattagh Najafi, Fatemeh Foroughirad
https://arxiv.org/abs/2505.19202 https://

Fractional Nonlinear Schrodinger Equation Revisited
We investigate the space time fractional nonlinear Schrodinger equation (FNLSE) incorporating the modified Riemann Liouville derivative introduced by Jumari. The equation is characterized by two parameters: the fractional derivative parameter (alpha, which captures the memory effects) and the non linearity parameter a. We present analytical solutions via three complementary approaches: the fractional Riccati method, the Adomian decomposition method, and the scaling method. The FNLSE is formulat…

@arXiv_nuclth_bot@mastoxiv.page
2025-06-05 09:54:51

This https://arxiv.org/abs/2411.07502 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Ab initio informed 20Ne(p, p$α$)16O reaction elucidates the emergence of alpha clustering from chiral potentials
We report on the first \textit{ab initio} informed $α$ knock-out reaction in the intermediate-mass region, with the aim to probe the underlying chiral potential and its impact on the emergence of alpha clustering in this mass region. The theoretical predictions of the $α+^{16}$O clustering in the $^{20}$Ne ground state, based on the \textit{ab initio} symmetry-adapted no-core shell model, yield a triple differential cross section for $^{20}$Ne(p, p$α$)$^{16}$O that is in a remarkable agreeme…

@arXiv_astrophSR_bot@mastoxiv.page
2025-06-04 07:48:59

Eighteen Exoplanet Host Stars from the NPOI Data Archive
Ellyn K. Baines, Jeremy Jones, James H. Clark III, Henrique R. Schmitt, Jordan M. Stone
https://arxiv.org/abs/2506.02934

Eighteen Exoplanet Host Stars from the NPOI Data Archive
During the course of publishing angular diameters from the Navy Precision Optical Interferometer data archive, we found we had data on 17 confirmed exoplanet host stars and one exoplanet candidate (HD 20902/alpha Per). Here, we update our previously published stellar radii with more precise Gaia parallaxes when available, and use our radius and effective temperature measurements to fit each star's mass and age using MIST models. The mass changed by more than 10% for 9 of the 18 stars. Combining…

@arXiv_qfinPM_bot@mastoxiv.page
2025-05-22 10:05:23

This https://arxiv.org/abs/2409.06289 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qfi…

Automate Strategy Finding with LLM in Quant Investment
We present a novel three-stage framework leveraging Large Language Models (LLMs) within a risk-aware multi-agent system for automate strategy finding in quantitative finance. Our approach addresses the brittleness of traditional deep learning models in financial applications by: employing prompt-engineered LLMs to generate executable alpha factor candidates across diverse financial data, implementing multimodal agent-based evaluation that filters factors based on market status, predictive quali…

@arXiv_astrophCO_bot@mastoxiv.page
2025-06-11 08:55:45

Behaviour of $\alpha$-attractors in Warm Inflation
Dibya Chakraborty, Suratna Das
https://arxiv.org/abs/2506.08489 https://arxiv.org/…

Behaviour of $α$-attractors in Warm Inflation
The $α$-attractor models of inflation have remained one of the preferred inflationary models for nearly a decade now. The unique attractor nature of these models in the $n_s-r$ plane have put these models in the sweet-spot of the $n_s-r$ measurement of Planck observations. In this article, we analyse the behaviour of such attractor models in a Warm Inflation setup to investigate whether the attractor nature of these models can be retained even when the dynamics deviates from the standard Cold …

@arXiv_nlinSI_bot@mastoxiv.page
2025-05-27 07:41:47

Quantisation ideals, canonical parametrisations of the unipotent group and consistent integrable systems
M. A. Chirkov, A. V. Mikhailov, D. V. Talalaev
https://arxiv.org/abs/2505.20253

Quantisation ideals, canonical parametrisations of the unipotent group and consistent integrable systems
Using the methods of quantisation ideals, we construct a family of quantisations corresponding to Case alpha in Sergeev's classification of solutions to the tetrahedron equation. This solution describes transformations between special parametrisations of the space of unipotent matrices with noncommutative coefficients. We analyse the classical limit of this family and construct a pencil of compatible Poisson brackets that remain invariant under the re-parametrisation maps (mutations). This deco…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-13 08:37:20

Bayesian luminosity function estimation in multidepth datasets with selection effects: a case study for $3<z<5$ Ly$\alpha$ emitters
Davide Tornotti, Matteo Fossati, Michele Fumagalli, Davide Gerosa, Lorenzo Pizzuti, Fabrizio Arrigoni Battaia
https://arxiv.org/abs/2506.10083

Bayesian luminosity function estimation in multidepth datasets with selection effects: a case study for $3
We present a hierarchical Bayesian framework designed to infer the luminosity function of any class of objects by jointly modeling data from multiple surveys with varying depth, completeness, and sky coverage. Our method explicitly accounts for selection effects and measurement uncertainties (e.g., in luminosity) and could be generalized to any extensive quantity, such as mass. We validate the model using mock catalogs, recovering how deep data reaching $\gtrsim 1.5$ dex below a characteristic …

@arXiv_astrophCO_bot@mastoxiv.page
2025-06-10 08:47:52

The $\alpha$-Attractor E-Model in Warm Inflation: Observational Viability from Planck 2018
Bhargabi Saha, Malay K. Nandy
https://arxiv.org/abs/2506.06717 h…

The $α$-Attractor E-Model in Warm Inflation: Observational Viability from Planck 2018
We explore the inflationary evolution and observational viability of the $α$-attractor E-model in the framework of warm inflation, focusing on both weak and strong dissipative regimes, with a dissipation coefficient linear in temperature. In the strong regime, we account for the growth of inflaton fluctuations due to coupling with the radiation bath via two different forms for the dissipation enhancement function: one associated with plateau-like potentials, and another motivated by the warm l…

@arXiv_nuclth_bot@mastoxiv.page
2025-06-11 09:01:05

Estimation of Electron Screening Potential in the 6Li(d,{\alpha})4He Reaction Using Multi-Layer Perceptron Neural Network
D. Chattopadhyay
https://arxiv.org/abs/2506.08044

Estimation of Electron Screening Potential in the 6Li(d,α)4He Reaction Using Multi-Layer Perceptron Neural Network
Reactions between light charged nuclei at sub-Coulomb energies are crucial in astrophysical environments, but accurate cross-section measurements are hindered by electron screening. Traditional methods, including polynomial extrapolation and the Trojan Horse Method, often yield screening potentials exceeding adiabatic predictions. Building on the success of an MLP-based Artificial Neural Network (ANN) for the 6Li(p, α)3He reaction [1], this work applies the same approach to the 6Li(d, α)4He r…

@arXiv_physicsplasmph_bot@mastoxiv.page
2025-06-04 07:47:27

Particle-in-Cell Simulations of Burning ICF Capsule Implosions
Johannes J. van de Wetering, Justin R. Angus, W. Farmer, V. Geyko, D. Ghosh, D. Grote, C. Weber, G. Zimmerman
https://arxiv.org/abs/2506.02273

Particle-in-Cell Simulations of Burning ICF Capsule Implosions
Anomalies observed in the neutron spectral shift of high-yield shots at the National Ignition Facility (NIF) suggest the presence of suprathermal ions, implying that kinetic effects play a significant role in burning inertial confinement fusion (ICF) plasmas. Furthermore, recent measurements of reaction-in-flight (RIF) neutrons offer a direct probe of the stopping power in the burning fuel region of high energy alpha particles and up-scattered fuel ions. We have developed the particle-in-cell c…

@arXiv_astrophGA_bot@mastoxiv.page
2025-05-30 10:18:46

This https://arxiv.org/abs/2504.07074 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The Lyman-alpha and Continuum Origins Survey II: the connection between the escape of ionizing radiation and Lyman-alpha halos in star-forming galaxies
One of the current challenges in galaxy evolution studies is to establish the mechanisms that govern the escape of ionizing radiation from galaxies. In this work, we investigate the connection between Lyman Continuum (LyC) escape and the conditions of the Circumgalactic Medium (CGM), as probed by Ly$α$ halos (LAHs) in emission. We use Ly$α$ and UV continuum imaging data from the Lyman alpha and Continuum Origins Survey (LaCOS), targeting 42 nearby ($z \simeq 0.3$), star-forming galaxies with …

@arXiv_physicsgenph_bot@mastoxiv.page
2025-05-26 10:36:52

This https://arxiv.org/abs/2504.06290 has been replaced.
initial toot: https://mastoxiv.page/@arX…

A DESI universe with time-dependent dark energy is 119 Myr younger than a LambdaCDM universe
On the basis of their redshift and Lyman-alpha measurements, the Dark Energy Spectroscopic Instrument (DESI) collaboration suggest that dark energy varies with the scale factor $a$ as $ ρ_{de}(a)={} \, a^{-3(1 + w_0 + w_a)} e^{-3 w_a (1-a)}ρ_{de,0} $ in which $w_0 = - 0.752 \pm 0.057$ and $w_a ={} - 0.86^{+0.23}_{-0.20} $. Such a DESI universe is 119 Myr younger than the LambdaCDM universe.

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-06 07:28:39

JWST Insights into Narrow-line Little Red Dots
Zijian Zhang, Linhua Jiang, Weiyang Liu, Luis C. Ho, Kohei Inayoshi
https://arxiv.org/abs/2506.04350 https:/…

JWST Insights into Narrow-line Little Red Dots
James Webb Space Telescope (JWST) has revealed a population of red and compact objects with a unique V-shape SED at z >= 4 known as Little Red Dots (LRDs). Most of the LRDs with existing spectral observations exhibit broad Balmer lines and are thus likely to host active galactic nuclei (AGNs). Here we present a study of LRDs with no broad H-alpha component. Our sample consists of five LRDs at z~5 with H-alpha line widths of about 250 km/s. They are selected from 32 LRDs that have NIRSpec high- …

@arXiv_astrophSR_bot@mastoxiv.page
2025-05-28 10:22:48

This https://arxiv.org/abs/2412.18872 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Proton Flux Measurement from Neutron Monitor Data Using Neural Networks
Accurate measurements of cosmic ray proton flux are essential for studying the modulation processes of cosmic rays during the solar activity cycle. A proton flux measurement method, based on ground-based neutron monitor (NM) data and deep learning techniques, is presented. After the necessary pre-processing of ground-based NM data using a convolutional neural network (CNN) model, we simulate the relationship between NM observations and proton flux measured by the Alpha Magnetic Spectrometer (AM…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-11 09:05:45

Hydrostatic and explosive $\alpha$-element chemical abundances of Milky Way globular clusters, halo substructures, and satellite galaxies
Danny Horta, Melissa K. Ness
https://arxiv.org/abs/2506.08079

Hydrostatic and explosive $α$-element chemical abundances of Milky Way globular clusters, halo substructures, and satellite galaxies
Stellar atmospheric element abundance ratios of stars retain information about their birth conditions, helping elucidate their origin and nature. In this letter, we analyse and contrast the hydrostatic and explosive $α$-element abundance ratios, and the ratio of the two (the hex ratio), for a large sample of Galactic globular clusters (GCs), halo substructures, satellite galaxies, and the Milky Way high-/low-$α$ discs using data from the $APOGEE$ survey. Our results show that: $i$) Milky Way …

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-03 16:48:03

This https://arxiv.org/abs/2501.08568 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

ODIN: Star Formation Histories Reveal Formative Starbursts Experienced by Lyman Alpha Emitting Galaxies at Cosmic Noon
In this work, we test the frequent assumption that Lyman Alpha Emitting galaxies (LAEs) are experiencing their first major burst of star formation at the time of observation. To this end, we identify 74 LAEs from the ODIN Survey with rest-UV-through-NIR photometry from UVCANDELS. For each LAE, we perform non-parametric star formation history (SFH) reconstruction using the Dense Basis Gaussian process-based method of spectral energy distribution fitting. We find that a strong majority (67%) of o…

@arXiv_nuclth_bot@mastoxiv.page
2025-06-02 07:32:27

AI-Assisted analysis of $^{28}$Si$^*$ $\rightarrow$ 7$\alpha$ break-up data
Theodoros Depastas, Aldo Bonasera, Joe Natowitz
https://arxiv.org/abs/2505.23920

AI-Assisted analysis of $^{28}$Si$^*$ $\rightarrow$ 7$α$ break-up data
Mid-weight $α$-conjugate nuclei are predicted to possess exotic toroid-like resonances with high angular momenta. The search for these states in $^{28}$Si$^*$ is the main point of two published experimental investigations of the peripheral $^{28}$Si + $^{12}$C reaction by Cao and collaborators and by Hannaman and collaborators. In this work, we develop a novel Artificial Intelligence (AI)-based machine learning method utilizing the Gaussian Mixture Model (GMM) to analyze available experimental…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-06 07:29:09

RIDEN pilot survey: broad-band selection of candidate quasars with extended Lyman-$\alpha$ nebulae using CLAUDS-HSC-SSP-DUNES$^2$ joint data
Rhythm Shimakawa, Satoshi Kikuta, Haruka Kusakabe, Marcin Sawicki, Yongming Liang, Rieko Momose, Stephen Gwyn, Guillaume Desprez
https://arxiv.org/abs/2506.04570

RIDEN pilot survey: broad-band selection of candidate quasars with extended Lyman-$α$ nebulae using CLAUDS-HSC-SSP-DUNES$^2$ joint data
The Vera C. Rubin Observatory will conduct the Legacy Survey of Space and Time (LSST), delivering deep, multi-band ($ugrizy$) imaging data across 18,000 square degrees over the next decade. Before this ultra-wide-field survey, we constructed a broad-band Ly$α$ imaging toward 483 SDSS/BOSS quasars at $z=$ 1.9-3.0, using deep, wide-field ultraviolet to near-infrared ($u$-to-$K$) data from the Hyper Suprime-Cam Subaru Strategic Survey (HSC-SSP), the CFHT Large Area U-band Deep Survey (CLAUDS), th…

@arXiv_nuclth_bot@mastoxiv.page
2025-06-03 16:56:30

This https://arxiv.org/abs/2412.12205 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Radiative Capture Reaction $d(α,γ)^{6}\mathrm{Li} $ in Cluster Effective Field Theory
In this study, we focus on the radiative capture process of the deuteron on alpha particle leading to the formation of $^6{\textrm{Li}}$ in the two-body formalism through the cluster effective field theory~(CEFT). It was the primitive nuclear reaction to produce ${^6 \textrm{Li}}$ in a few minutes after the Big Bang. In detail, we outline the calculation of the dominant $E1$ and $E2$ electromagnetic transition amplitudes of $d(α,γ){^6\textrm{Li}}$. Then, we obtain the astrophysical S-factor b…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-05 07:29:33

Changing Look AGN: A study of Optical/UV and the Highly Ionized Fe K$\alpha$ X-ray Line Flux Variations Using Photo-Ionization Simulations
Tek P. Adhikari, Santanu Mondal, Zhicheng He, Agata Rozanska, Krzysztof Hryniewicz
https://arxiv.org/abs/2506.03540

Changing Look AGN: A study of Optical/UV and the Highly Ionized Fe K$α$ X-ray Line Flux Variations Using Photo-Ionization Simulations
Significant variability in broad emission line strengths of active galactic nuclei (AGN) over months to years has been observed, often accompanied by intrinsic continuum changes. Such spectral variability challenges the traditional AGN classification scheme, which attributes differences between Type 1 and Type 2 to geometrical effects, as transitions between these types occur on timescales shorter than viscous ones. In this work, using the {\sc cloudy} photo-ionization simulations, we investiga…

@arXiv_astrophGA_bot@mastoxiv.page
2025-06-02 07:28:54

The Impact of Galaxy Overdensities and Ionized Bubbles on Ly$\alpha$ Emission $z\sim7.0\mbox{--}8.5$
Zuyi Chen, Daniel P. Stark, Charlotte A. Mason, Mengtao Tang, Lily Whitler, Michael W. Topping
https://arxiv.org/abs/2505.24080

The Impact of Galaxy Overdensities and Ionized Bubbles on Ly$α$ Emission $z\sim7.0\mbox{--}8.5$
Ly$α$ spectroscopy with {\it JWST} is opening a new window on the sizes of ionized bubbles through the reionization epoch. Theoretical expectations suggest typical bubble radii should be 0.6--1.5 pMpc at $z\simeq 7$, assuming neutral hydrogen fractions of the intergalactic medium in the range $\overline{x}_{\rm HI}$=0.5--0.7. Here we investigate this picture using {\it JWST} to characterize the environment and Ly$α$ emission of 292 galaxies at $7.0

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