Tootfinder

Systematics from NICER Pulse Profiles Drive Uncertainty in Multi-Messenger Inference of the Neutron Star Equation of State
Bhaskar Biswas, Prasanta Char
https://arxiv.org/abs/2507.12540

Systematics from NICER Pulse Profiles Drive Uncertainty in Multi-Messenger Inference of the Neutron Star Equation of State
We present new constraints on the neutron star equation of state (EOS) and mass distribution using a unified Bayesian inference framework that incorporates latest NICER measurements, including PSR J0614$-$3329, alongside gravitational wave data, radio pulsar masses, and nuclear theory. By systematically comparing four inference scenarios--varying in the inclusion of PSR J0614$-$3329 and in the pulse profile model used for PSR J0030+0451--we quantify the impact of observational and modeling choi…

An updated constraint on the Effective Field Theory of Dark Energy
Chi Zheng, Wei Liu, Zonghao Zhan, Wenjuan Fang
https://arxiv.org/abs/2509.13804 https://…

An updated constraint on the Effective Field Theory of Dark Energy
The Effective Field Theory of Dark Energy (EFTofDE) provides a systematic and model-independent framework to study dark energy (DE) and modified gravity (MG) with one additional scalar degree of freedom. It can describe the known models such as Quintessence, k-essence, DGP, $f(R)$, and Horndeski theories. In this work, we update constraints on EFTofDE by utilizing the most up-to-date public data including the BAO (DESI DR2), CMB (Planck 2018 \& ACT DR6), SNIa (DESY5), weak lensing (DESY3) and f…

(Super)$\,$Gravity from Positivity
Brando Bellazzini, Alex Pomarol, Marcello Romano, Francesco Sciotti
https://arxiv.org/abs/2507.12535 https://

(Super)$\,$Gravity from Positivity
We investigate whether the effective theory for isolated, massive, and weakly interacting spin-$3/2$ particles is compatible with causality and unitarity-i.e., the positivity of scattering amplitudes. We find no solution to positivity constraints, except when gravitons are also present and couple in a (nearly) supersymmetric way. Gravity is thus bootstrapped from $S$-matrix consistency conditions for the longitudinal and transverse polarizations of massive spin-$3/2$ states. For two such partic…

Searching for heavy resonances via oblique parameters in non-linear effective frameworks
Ignasi Rosell, Antonio Pich, Juan Jose Sanz-Cillero
https://arxiv.org/abs/2509.13193 htt…

Searching for heavy resonances via oblique parameters in non-linear effective frameworks
Within the framework of a general non-linear effective field theory describing the electroweak symmetry breaking, we perform a detailed analysis of the next-to-leading contributions to the electroweak oblique parameters $S$ and $T$ from hypothetical heavy resonance states strongly coupled to Standard Model fields. This work extends our previous results by including parity-odd operators in the effective Lagrangian, contributions from fermionic cuts, and up-to-date experimental constraints. We de…

Online Safety under Multiple Constraints and Input Bounds using gatekeeper: Theory and Applications
Devansh R. Agrawal, Dimitra Panagou
https://arxiv.org/abs/2508.09963 https://…

Online Safety under Multiple Constraints and Input Bounds using gatekeeper: Theory and Applications
This letter presents an approach to guarantee online safety of a cyber-physical system under multiple state and input constraints. Our proposed framework, called gatekeeper, recursively guarantees the existence of an infinite-horizon trajectory that satisfies all constraints and system dynamics. Such trajectory is constructed using a backup controller, which we define formally in this paper. gatekeeper relies on a small number of verifiable assumptions, and is computationally efficient since it…

Nonlinear Effects in a Weakly Nonholonomic Systems With a Small Degrees of Freedom
Alexander S. Kuleshov, Nikita M. Vidov
https://arxiv.org/abs/2508.10803 https://

Nonlinear Effects in a Weakly Nonholonomic Systems With a Small Degrees of Freedom
In 1986 Ya.V. Tatarinov presented the foundations of the theory of weakly nonholonomic systems. Mechanical systems with nonholonomic constraints depending on a small parameter are considered. It is assumed that for zero value of this parameter the constraints of such a system become integrable; i.e., in this case, we have a family of holonomic systems depending on several arbitrary integration constants. We will assume that these holonomic systems are completely integrable Hamiltonian systems. …

Arrow's Impossibility Theorem as a Generalisation of Condorcet's Paradox
Ori Livson, Mikhail Prokopenko
https://arxiv.org/abs/2510.09076 https://ar…

Arrow's Impossibility Theorem as a Generalisation of Condorcet's Paradox
Arrow's Impossibility Theorem is a seminal result of Social Choice Theory that demonstrates the impossibility of ranked-choice decision-making processes to jointly satisfy a number of intuitive and seemingly desirable constraints. The theorem is often described as a generalisation of Condorcet's Paradox, wherein pairwise majority voting may fail to jointly satisfy the same constraints due to the occurrence of elections that result in contradictory preference cycles. However, a formal proof of t…

Theoretical Signatures of QCD Phase Transitions in Compact Astrophysical Systems
Debarshi Mukherjee
https://arxiv.org/abs/2509.10589 https://arxiv.org/pdf/…

Theoretical Signatures of QCD Phase Transitions in Compact Astrophysical Systems
We investigate theoretical signatures of first-order QCD phase transitions in high-density astrophysical systems through a framework combining lattice QCD, effective field theories, and multimessenger constraints. Hybrid equations of state with Maxwell and Gibbs constructions, constrained by lattice QCD at finite temperature and baryon chemical potential up to mu_B/T < 3, interpolate consistently between chiral effective field theory at nuclear densities and perturbative QCD at asymptotic densi…

Recovery of the second law in fully quantum thermodynamics
Naoto Shiraishi, Ryuji Takagi
https://arxiv.org/abs/2510.05642 https://arxiv.org/pdf/2510.05642

Recovery of the second law in fully quantum thermodynamics
Quantum thermodynamics investigates how robust the second law of thermodynamics serves as the unique fundamental law in the small quantum world. To tackle this problem, the quantum coherence constitutes a major difficulty of investigations, which provides severe constraints hindering the recovery of a single thermodynamic potential. Here we solve this long-standing problem of quantum information theory by revealing that the state convertibility under thermal operations is fully characterized by…

Consistent Bayesian Spatial Domain Partitioning Using Predictive Spanning Tree Methods
Kun Huang, Huiyan Sang
https://arxiv.org/abs/2508.08324 https://arxi…

Consistent Bayesian Spatial Domain Partitioning Using Predictive Spanning Tree Methods
Bayesian model-based spatial clustering methods are widely used for their flexibility in estimating latent clusters with an unknown number of clusters while accounting for spatial proximity. Many existing methods are designed for clustering finite spatial units, limiting their ability to make predictions, or may impose restrictive geometric constraints on the shapes of subregions. Furthermore, the posterior clustering consistency theory of spatial clustering models remains largely unexplored in…

Geometry of effective field theory positivity cones
Quentin Bonnefoy, Vicente Cort\'es, Emanuele Gendy, Christophe Grojean, Karim Ritter von Merkl, Paula Naomi Pilatus
https://arxiv.org/abs/2508.18165

Geometry of effective field theory positivity cones
Positivity bounds are theoretical constraints on the Wilson coefficients of an effective field theory. These bounds emerge from the requirement that a given effective field theory must be the low-energy limit of a relativistic quantum theory that satisfies the fundamental principles of unitarity, locality, and causality. The task of deriving these bounds can be reformulated as the geometric problem of finding the extremal representation of a closed convex cone~$\mathcal C_W$. More precisely, in…

The Service Rate Region of Hamming Codes
Priyanka Choudhary, Maheshanand Bhaintwal
https://arxiv.org/abs/2509.22898 https://arxiv.org/pdf/2509.22898…

The Service Rate Region of Hamming Codes
The service rate region of a coded distributed storage system is the set of all achievable data access requests under the capacity constraints. This paper investigates the service rate regions of systematic Hamming codes using hypergraph theory and derives bounds for the maximal achievable service rate of individual data objects. We establish upper bounds on the sum of service rates of data symbols indexed by a subset of systematic nodes in a systematic binary Hamming code, and explore the achi…

Imposing quasineutrality on electrostatic plasmas via the Dirac theory of constraints
D. A. Kaltsas, J. W. Burby, P. J. Morrison, E. Tassi, G. N. Throumoulopoulos
https://arxiv.org/abs/2508.02389

Imposing quasineutrality on electrostatic plasmas via the Dirac theory of constraints
We present a method for imposing quasineutrality and, more generally, charge density conservation in the Vlasov-Poisson (VP) and Vlasov-Ampère (VA) systems, which describe electrostatic plasma dynamics, by applying the Dirac theory of constraints. Leveraging the Hamiltonian field formulations of the VP and VA models, we construct generalized Dirac brackets using the Dirac algorithm. The resulting constrained systems enforce charge density conservation, and consequently quasineutrality, through…

Enhancing Mega-Satellite Networks with Generative Semantic Communication: A Networking Perspective
Binquan Guo, Wanting Yang, Zehui Xiong, Zhou Zhang, Baosheng Li, Zhu Han, Rahim Tafazolli, Tony Q. S. Quek
https://arxiv.org/abs/2508.07573

Enhancing Mega-Satellite Networks with Generative Semantic Communication: A Networking Perspective
The advance of direct satellite-to-device communication has positioned mega-satellite constellations as a cornerstone of 6G wireless communication, enabling seamless global connectivity even in remote and underserved areas. However, spectrum scarcity and capacity constraints imposed by the Shannon's classical information theory remain significant challenges for supporting the massive data demands of multimedia-rich wireless applications. Generative Semantic Communication (GSC), powered by artif…

Existence of ghost-eliminating constraints in multivielbein theory
J. Flinckman, S. F. Hassan
https://arxiv.org/abs/2510.03014 https://arxiv.org/pdf/2510.0…

Existence of ghost-eliminating constraints in multivielbein theory
We perform a Hamiltonian constraint analysis of the multivielbein theory proposed in arXiv:1804.09723. The analysis shows that the secondary constraints have the correct form to constrain the dynamical variables, thereby eliminating the problematic ghost modes that generally plague theories of interacting spin-2 fields. Under mild restrictions on the solution space, we also identify the tertiary constraints and show that these eliminate the canonical momenta associated with the ghost modes. Our…

On the viability of minimal Ho\v{r}ava gravity
Ted Jacobson, Pranav Pulakkat
https://arxiv.org/abs/2508.03106 https://arxiv.org/pdf/2508.03106

On the viability of minimal Hořava gravity
Hořava gravity is a Lorentz-violating modification of general relativity (GR) with a preferred spacelike foliation. Observational evidence has put strong constraints on the parameter values in this model, so that the remaining viable sector is well-characterized by the Newton constant and a single additional parameter. We analyze this restricted theory, which is called minimal Hořava gravity ($\mathrm{mHg}$), from the Hamiltonian point of view. We find that in order to eliminate a pathologica…

Tropical geometry in torus bundles
Emily Dodwell
https://arxiv.org/abs/2509.02569 https://arxiv.org/pdf/2509.02569

Tropical geometry in torus bundles
We formulate and prove an analogue of the balancing condition for the tropicalization of a curve in a torus bundle $X$. We find that the usual balancing condition fails when the bundle is non-trivial and that the failure is captured by the first Chern classes of the line bundles associated to $X$. We discuss a geometric perspective of tropicalization where the weights arise naturally from intersection theory. The relations between divisors on a toric variety bundle put constraints on these weig…

Neutrino and Electromagnetic Signals from Tidal Disruption Events: Bridging the Theory with Observations
Chengchao Yuan, Walter Winter, Cecilia Lunardini, B. Theodore Zhang, Kohta Murase, Bing Zhang
https://arxiv.org/abs/2508.07940

Neutrino and Electromagnetic Signals from Tidal Disruption Events: Bridging the Theory with Observations
This proceeding presents recent results from a joint analysis of time-dependent neutrino and electromagnetic emissions from tidal disruption events (TDEs), using both isotropic wind models and relativistic jets. We discuss constraints from Fermi Large Area Telescope (LAT) $γ$-ray upper limits on the size of the radiation zone and the maximum energies of accelerated cosmic rays, as well as the resulting neutrino productions from TDEs and candidates, including AT 2019dsg, AT 2019fdr, AT 2019aalc…

Embedding General Conservation Constraints in Discretizations of Hyperbolic Systems on Arbitrary Meshes: A Multidimensional Framework
R\'emi Abgrall, Pierre-Henri Maire, Mario Ricchiuto
https://arxiv.org/abs/2509.25967

Embedding General Conservation Constraints in Discretizations of Hyperbolic Systems on Arbitrary Meshes: A Multidimensional Framework
The purpose of this review is to discuss the notion of conservation in hyperbolic systems and how one can formulate it at the discrete level depending on the solution representation of the solution. A general theory is difficult. We discuss several possibilities: if the solution is represented by average in volumes; if the mesh is staggerred; if the solution is solely represented by point values and an example where all the previous options are mixed. We show how each configuration can provid…

Compatible Instability: Gauge Constraints of Elasticity Inherited by Electronic Nematic Criticality
W. Joe Meese, Rafael M. Fernandes
https://arxiv.org/abs/2507.23753 https://…

Compatible Instability: Gauge Constraints of Elasticity Inherited by Electronic Nematic Criticality
Electronic nematicity is widely observed in quantum materials with varying degrees of electronic correlation, manifesting through charge, spin, orbital, or superconducting degrees of freedom. A phenomenological model capable of describing this broad set of systems must also account for nemato-elasticity, by which nematic and elastic degrees of freedom become intertwined. However, being a tensor gauge field theory, elasticity must satisfy the compatibility relations which guarantee the integrabi…

Effective Field Theory Constraints on Primordial Black Holes from the High-Redshift Lyman-$\alpha$ Forest
Mikhail M. Ivanov, Sokratis Trifinopoulos
https://arxiv.org/abs/2508.04767

Effective Field Theory Constraints on Primordial Black Holes from the High-Redshift Lyman-$α$ Forest
We present updated constraints on the abundance of primordial black holes (PBHs) dark matter from the high-redshift Lyman-$α$ forest data from MIKE/HIRES experiments. Our analysis leverages an effective field theory (EFT) description of the 1D flux power spectrum, allowing us to analytically predict the Lyman-$α$ fluctuations on quasi-linear scales from first principles. Our EFT-based likelihood enables robust inference across redshifts $z = 4.2-5.4$ and down to scales of 100 kpc, within prev…

Segmentation of the spacecraft transfer problem through overdetermined and continuity constraints based on the Theory of Functional Connections
Allan Kardec de Almeida Junior
https://arxiv.org/abs/2509.14286

Segmentation of the spacecraft transfer problem through overdetermined and continuity constraints based on the Theory of Functional Connections
This paper introduces a segmented approach for solving constrained orbit transfer problems. The segments are connected through continuity constraints under the Theory of Functional Connections (TFC) mathematical framework that performs linear functional interpolation. This approach is further enhanced by a general vector formulation, from where the constrained functional is derived considering also a set of linear overdetermined constraints. Since we constrain vector instead of coordinates, thi…

Sensitivity of $W$-boson measurements to low-mass right-handed neutrinos
Rodrigo Alonso, Sam Bates, Chris Hays, Chris Pollard, Michael Spannowsky
https://arxiv.org/abs/2508.08903

Sensitivity of $W$-boson measurements to low-mass right-handed neutrinos
A low-mass right-handed neutrino could interact with electroweak bosons via mixing, a mediator particle, or loop corrections. Using an effective field theory, we determine constraints on these interactions from $W$-boson measurements at hadron colliders. Due to the difference in the initial states at the Tevatron and the LHC, $W$-boson decays to a right-handed neutrino would artificially increase the mass measured at the Tevatron while only affecting the difference between $W^+$ and $W^-$ mass …

Quantum Monte Carlo Benchmarking of Molecular Adsorption on Graphene-Supported Single Pt Atom
Jeonghwan Ahn, Iuegyun Hong, Gwangyoung Lee, Hyeondeok Shin, Anouar Benali, Yongkyung Kwon
https://arxiv.org/abs/2508.21339

Quantum Monte Carlo Benchmarking of Molecular Adsorption on Graphene-Supported Single Pt Atom
The precise understanding of adsorption energetics and molecular geometry at catalytic sites is fundamental for advancing catalysis, particularly under the constraints of resource efficiency and environmental sustainability. This study benchmarks the performance of density functional theory (DFT) calculations against diffusion Monte Carlo (DMC) calculations for adsorption properties of small gas molecules relevant to CO oxidation -- namely O$_2$, CO, CO$_2$, and atomic oxygen -- on a single Pt …

From Formal Language Theory to Statistical Learning: Finite Observability of Subregular Languages
Katsuhiko Hayashi, Hidetaka Kamigaito
https://arxiv.org/abs/2509.22598 https://…

From Formal Language Theory to Statistical Learning: Finite Observability of Subregular Languages
We prove that all standard subregular language classes are linearly separable when represented by their deciding predicates. This establishes finite observability and guarantees learnability with simple linear models. Synthetic experiments confirm perfect separability under noise-free conditions, while real-data experiments on English morphology show that learned features align with well-known linguistic constraints. These results demonstrate that the subregular hierarchy provides a rigorous an…

Deep Finite Temperature Bootstrap
V. Niarchos, C. Papageorgakis, A. Stratoudakis, M. Woolley
https://arxiv.org/abs/2508.08560 https://arxiv.org/pdf/2508.08…

Deep Finite Temperature Bootstrap
We introduce a novel method to bootstrap crossing equations in Conformal Field Theory and apply it to finite temperature theories on $S^1\times \mathbb{R}^{d-1}$. The proposed approach does not rely on positivity constraints and does not employ uncontrolled truncation schemes. Instead, we capture the contribution of an infinite number of operators in conformal block expansions using suitable functions, which are bootstrapped (numerically) together with a finite number of exposed CFT data. Our a…

Sharp-Peak Functions for Exactly Penalizing Binary Integer Programming
Shenglong Zhou, Shuai Li, Hui Zhang, Ziyan Luo
https://arxiv.org/abs/2509.00895 https://

Sharp-Peak Functions for Exactly Penalizing Binary Integer Programming
Unconstrained binary integer programming (UBIP) is a challenging optimization problem due to the presence of binary variables. To address the challenge, we introduce a novel class of functions named sharp-peak functions (SPFs), which equivalently reformulate the binary constraints as equality constraints, giving rise to an SPF-constrained optimization. Rather than solving this constrained reformulation directly, we focus on its associated penalty model. The established exact penalty theory show…

"In a broader sense, however, today’s ruling is of a piece with this Court’s recent tendencies. “[R]ight when the Judiciary should be hunkering down to do all it can to preserve the law’s constraints,” the Court opts instead to make vindicating the rule of law and preventing manifestly injurious Government action as difficult as possible….. This is Calvinball jurisprudence with a twist. Calvinball has only one rule: There are no fixed rules. We seem to have two: that one, and this Admin…

Justice Jackson Correctly Defines The John Roberts Supreme Court As The Calvinball Court
In theory, the nice thing about having a Supreme Court is that it provides some level of legal certainty. You know how the system works: lower courts make decisions based on law and precedent, part…

Nonexistence of Consecutive Powerful Triplets Around Cubes with Prime-Square Factors
Jialai She
https://arxiv.org/abs/2507.16828 https://

Nonexistence of Consecutive Powerful Triplets Around Cubes with Prime-Square Factors
The Erdős-Mollin-Walsh conjecture, asserting the nonexistence of three consecutive powerful integers, remains a celebrated open problem in number theory. A natural line of inquiry, following recent work by Chan (2025), is to investigate potential counterexamples centered around perfect cubes, which are themselves powerful. This paper establishes a new non-existence result for a family of such integer triplets with distinct structural constraints, combining techniques from modular arithmetic, $…

Efficient Optimal Path Planning in Dynamic Environments Using Koopman MPC
Mohammad Abtahi, Navid Mojahed, Shima Nazari
https://arxiv.org/abs/2510.02584 https://

Efficient Optimal Path Planning in Dynamic Environments Using Koopman MPC
This paper presents a data-driven model predictive control framework for mobile robots navigating in dynamic environments, leveraging Koopman operator theory. Unlike the conventional Koopman-based approaches that focus on the linearization of system dynamics only, our work focuses on finding a global linear representation for the optimal path planning problem that includes both the nonlinear robot dynamics and collision-avoidance constraints. We deploy extended dynamic mode decomposition to ide…

Maximum channel entropy principle and microcanonical channels
Philippe Faist, Sumeet Khatri
https://arxiv.org/abs/2508.03994 https://arxiv.org/pdf/2508.039…

Maximum channel entropy principle and microcanonical channels
The thermal state plays a number of significant roles throughout physics, information theory, quantum computing, and machine learning. It arises from Jaynes' maximum-entropy principle as the maximally entropic state subject to linear constraints, and is also the reduced state of the microcanonical state on the system and a large environment. We formulate a maximum-channel-entropy principle, defining a thermal channel as one that maximizes a channel entropy measure subject to linear constraints …

Maximal Covering Location Problem: A Set Coverage Approach Using Dynamic Programming
Sukanya Samanta, Abhi Rohit Kalathoti, Siva Jayanth Gonchi, Venkata Krishna Kashyap Adiraju, Sai Kiran Nettem
https://arxiv.org/abs/2509.23334

Maximal Covering Location Problem: A Set Coverage Approach Using Dynamic Programming
The Maximal Covering Location Problem (MCLP) represents a fundamental optimization challenge in facility location theory, where the objective is to maximize demand coverage while operating under resource constraints. This paper presents a comprehensive analysis of MCLP using a set coverage methodology implemented through 0/1 knapsack dynamic programming. Our approach addresses the strategic placement of facilities to achieve optimal coverage of demand points within specified service distances. …

Exploring epidemic control policies using nonlinear programming and mathematical models
Sandra Montes-Olivas, Adam J. Kucharski, Michael B. Gravenor, Simon D. W. Frost
https://arxiv.org/abs/2508.05290 …

Exploring epidemic control policies using nonlinear programming and mathematical models
Optimal control theory in epidemiology has been used to establish the most effective intervention strategies for managing and mitigating the spread of infectious diseases while considering constraints and costs. Using Pontryagin's Maximum Principle, indirect methods provide necessary optimality conditions by transforming the control problem into a two-point boundary value problem. However, these approaches are often sensitive to initial guesses and can be computationally challenging, especially…

Nonlinear analysis of causality for heat flow in heavy-ion collisions: constraints from equation of state
Victor Roy
https://arxiv.org/abs/2508.03265 https://

Nonlinear analysis of causality for heat flow in heavy-ion collisions: constraints from equation of state
We explore the causal parameter space of the Mueller-Israel-Stewart second-order theory for heat-conducting fluids in nonlinear regimes for one-dimensional fluid flow. We show that this parameter space is highly constrained and particularly sensitive to the equation of state and second-order transport coefficients. Through numerical analysis of the characteristic equations, we identify regions of strong hyperbolicity, weak hyperbolicity, and non-hyperbolicity, mapping the boundaries of causalit…

Passive nonlinear FIR filters for data-driven control
Zixing Wang, Fulvio Forni
https://arxiv.org/abs/2508.05279 https://arxiv.org/pdf/2508.05279

Passive nonlinear FIR filters for data-driven control
We propose a new class of passive nonlinear finite impulse response operators. This class is constructed by the action of finite impulse response filters in a lifted space. This allows for efficient control synthesis through constrained optimization. Closed-loop performance is taken into account through least-squares fitting, based on the theory of virtual reference feedback tuning. Passivity is established through efficient linear constraints, based on sampling in the frequency domain. Because…

Massive Star Formation at Supersolar Metallicities: Constraints on the Initial Mass Function
Eda Gjergo, Zhiyu Zhang, Pavel Kroupa, Aleksei Sorokin, Zhiqiang Yan, Ziyi Guo, Tereza Jerabkova, Akram Hasani Zoonozi, Hosein Haghi
https://arxiv.org/abs/2509.20440

Massive Star Formation at Supersolar Metallicities: Constraints on the Initial Mass Function
Metals enhance the cooling efficiency of molecular clouds, promoting fragmentation. Consequently, increasing the metallicity may boost the formation of low-mass stars. Within the integrated galaxy initial mass function (IGIMF) theory, this effect is empirically captured by a linear relation between the slope of the low-mass stellar IMF, $α_1$, and the metal mass fraction, $Z$. This linear $α_1$-$Z$ relation has been calibrated up to $\approx 2 \, Z_{\odot}$, though higher metallicity environm…

Crosslisted article(s) found for cs.IT. https://arxiv.org/list/cs.IT/new
[1/1]:
- Simulation of Quantum Repeater Networks under Decoherence and Purification Constraints
Wenhan Li, Shiyu Zhang

Khovanov homology of tangles: algorithm and computation
Li Shen, Jian Liu, Guo-Wei Wei
https://arxiv.org/abs/2508.14404 https://arxiv.org/pdf/2508.14404

Khovanov homology of tangles: algorithm and computation
Knot, link, and tangle theory is crucial in both mathematical theory and practical application, including quantum physics, molecular biology, and structural chemistry. Unlike knots and links, tangles impose more relaxed constraints, allowing the presence of arcs, which makes them particularly valuable for broader applications. Although Khovanov homology for knots and links has been extensively studied, its computation for tangles remains largely unexplored. In our recent work, we provide a topo…

Evolutionary hypergame dynamics: Introspection reasoning and social learning
Feipeng Zhang, Te Wu, Guofeng Zhang, Long Wang
https://arxiv.org/abs/2509.24398 https://

Evolutionary hypergame dynamics: Introspection reasoning and social learning
In the realm of evolutionary game theory, standard frameworks typically presuppose that every player possesses comprehensive knowledge and unrestricted access to the entire strategy space. However, real-world human society inherently harbors diverse levels of knowledge, experience, and background among individuals. Hypergames incorporate this heterogeneity by permitting individuals to differ in their access to the full strategy set, reflecting cognitive or informational constraints and giving r…

UV origins of CP-violating leptonic Yukawa couplings
Nejc Ko\v{s}nik, Ajdin Palavri\'c, Aleks Smolkovi\v{c}
https://arxiv.org/abs/2509.04325 https://ar…

UV origins of CP-violating leptonic Yukawa couplings
Probing the CP nature of the Higgs Yukawa couplings is a promising avenue for unraveling new physics effects. In this work, we investigate the possible single- and two-field UV origins of CP-violating leptonic Yukawa couplings, using the Standard Model Effective Field Theory as a stepping stone. We demonstrate a rich set of constraints on the UV model parameters, including direct Higgs measurements, electric and magnetic dipole moments of leptons, charged lepton flavor violating observables, an…

Krylov exponents and power spectra for maximal quantum chaos: an EFT approach
Saskia Demulder, Maria Knysh, Andrew Rolph
https://arxiv.org/abs/2508.05444 https://

Krylov exponents and power spectra for maximal quantum chaos: an EFT approach
We examine the effective field theory (EFT) of maximal chaos through the lens of Krylov complexity and the Universal Operator Growth Hypothesis. We test the relationship between two measures of quantum chaos: out-of-time-ordered correlators (OTOCs) and Krylov complexity. In the EFT, a shift symmetry of the hydrodynamic modes enforces the maximal Lyapunov exponent in OTOCs, $λ_L = 2πT$, while simultaneously constraining thermal two-point autocorrelators. We solve these constraints on the autoc…

Hot-Ham: an accurate and efficient E(3)-equivariant machine-learning electronic structures calculation framework
Zhixin Liang, Yunlong Wang, Chi Ding, Junjie Wang, Hui-Tian Wang, Dingyu Xing, Jian Sun
https://arxiv.org/abs/2509.04875

Hot-Ham: an accurate and efficient E(3)-equivariant machine-learning electronic structures calculation framework
The combinations of machine learning with ab initio methods have attracted much attention for their potential to resolve the accuracy-efficiency dilemma and facilitate calculations for large-scale systems. Recently, equivariant message passing neural networks (MPNNs) that explicitly incorporate symmetry constraints have demonstrated promise for interatomic potential and density functional theory (DFT) Hamiltonian predictions. However, the high-order tensors used to represent node and edge infor…

Information Field Theory -- Concepts, Applications, and AI-Perspective
Torsten En{\ss}lin
https://arxiv.org/abs/2508.17269 https://arxiv.org/pdf/2508.17269…

Information Field Theory -- Concepts, Applications, and AI-Perspective
Information field theory (IFT) is the application of probabilistic reasoning to fields. Physical fields are mathematical functions over continuous spaces that exhibit certain properties of regularity, such as limited variance and finite gradients. Inferring a field from an observational dataset should exploit these regularities. However, the finite number of constraints that the data provides is insufficient to determine the infinite number of degrees of freedom of a field. IFT enables us to de…

Optimal Control in Infinite Dimensional Spaces and Economic Modeling: State of the Art and Perspectives
Giorgio Fabbri, Silvia Faggian, Salvatore Federico, Fausto Gozzi
https://arxiv.org/abs/2509.19909

Optimal Control in Infinite Dimensional Spaces and Economic Modeling: State of the Art and Perspectives
This survey collects, within a unified framework, various results (primarily by the authors themselves) on the use of Deterministic Infinite-Dimensional Optimal Control Theory to address applied economic models. The main aim is to illustrate, through several examples, the typical features of such models (including state constraints, non-Lipschitz data, and non-regularizing differential operators) and the corresponding methods needed to handle them. This necessitates developing aspects of the ex…

Flavor constraints from $pp\to Vh$ and $pp\to VW$ at the LHC
O. J. P. \'Eboli, L. P. S. Leal, M. Martines, O. Sumensari
https://arxiv.org/abs/2509.08437 https://

Flavor constraints from $pp\to Vh$ and $pp\to VW$ at the LHC
We investigate the potential of associated Higgs $pp\to Vh$ and diboson production $pp\to VW$ channels at the LHC (with $V=W,Z$) to constrain flavor-physics operators. Within a general Effective Field Theory (EFT) framework, we derive the helicity amplitudes for these processes at high energies and identify the leading contributions from dimension-six operators involving different quark flavors. Using available LHC data, we show that these processes are sensitive to non-trivial flavor structure…

Quantum Walks for Chemical Reaction Networks
Seenivasan Hariharan, Sebastian Zur, Sachin Kinge, Lucas Visscher, Kareljan Schoutens, Stacey Jeffery
https://arxiv.org/abs/2509.07890

Quantum Walks for Chemical Reaction Networks
We lay the foundation for a quantum algorithmic framework to analyse fixed-structure chemical reaction networks (CRNs) using quantum random walks (QRWs) via electrical circuit theory. We model perturbations to CRNs, such as, species injections that shift steady-state concentrations, while keeping the underlying species-reaction graph fixed. Under physically meaningful mass-action constraints, we develop quantum algorithms that (i) decide reachability of target species after perturbation, (ii) s…

A note on Gravitational radiation in generalized Brans-Dicke theory: compact binary systems
Diego S. Jesus, Hermano Velten, J\'unior D. Toniato
https://arxiv.org/abs/2507.22661

A note on Gravitational radiation in generalized Brans-Dicke theory: compact binary systems
This note revisits and corrects a previous analysis on gravitational radiation in compact binary systems within the framework of Brans-Dicke-f(R) theories-models featuring both massless and effectively massive scalar fields. We correct the lower bound on the Brans-Dicke coupling parameter $ω_0$ presented in prior work, identifying teh issue that led to inverted constraints. By reanalyzing data from the binary system PSR J1012+5307, we present revised bounds on $ω_0$ as a function of the geome…

Interacting-cluster spin liquids with robust flat bands evolving into higher-rank half-moon phases and topological Lifshitz transitions
Na\"imo Davier, Ludovic D. C. Jaubert
https://arxiv.org/abs/2509.18845

Precision gravity constraints on large dark sectors
Christopher Ewasiuk, Stefano Profumo
https://arxiv.org/abs/2509.02801 https://arxiv.org/pdf/2509.02801

Precision gravity constraints on large dark sectors
General relativity, treated as a low-energy effective field theory, predicts quantum corrections to Newton's law of gravitation arising from loops of matter and graviton fields. While these corrections are utterly negligible when considering the Standard Model particle content, the situation changes dramatically in the presence of a hidden or dark sector containing a very large number of light degrees of freedom. In such cases, loop-induced modifications to the Newtonian potential can accumulat…

Probing UHECR sources - Constraints from cosmic-ray measurements
Teresa Bister
https://arxiv.org/abs/2508.20767 https://arxiv.org/pdf/2508.20767

Probing UHECR sources - Constraints from cosmic-ray measurements
Ultra-high-energy cosmic rays (UHECRs) are the most energetic particles known - and yet their origin is still an open question. However, with the precision and accumulated statistics of the Pierre Auger Observatory and the Telescope Array, in combination with advancements in theory and modeling - e.g. of the Galactic magnetic field - it is now possible to set solid constraints on the sources of UHECRs. The spectrum and composition measurements above the ankle can be well described by a populati…

High-precision bootstrap of multi-matrix quantum mechanics
Henry W. Lin, Zechuan Zheng
https://arxiv.org/abs/2507.21007 https://arxiv.org/pdf/2507.21007

High-precision bootstrap of multi-matrix quantum mechanics
We consider matrix quantum mechanics with multiple bosonic matrices, including those obtained from dimensional reduction of Yang-Mills theories. Using the matrix bootstrap, we study simple observables like $\langle \mathop{tr} X^2 \rangle$ in the confining phase of the theory in the infinite $N$ limit. By leveraging the symmetries of these models and using non-linear relaxation, we consider constraints up to level 14, e.g., constraints from traces of words of length $\le 14$. Our results are mo…

Regulator constraints for the perturbative renormalizability of attractive triplets
Manuel Pavon Valderrama
https://arxiv.org/abs/2509.23855 https://arxiv.…

Regulator constraints for the perturbative renormalizability of attractive triplets
Nuclear effective field theory organizes the calculation of observables as a power series in terms of the ratio of soft and hard momentum scales. The rigorous implementation of this idea requires a mixture of perturbative and non-perturbative methods: on the one hand, nuclei are bound states that require the iteration of part of the nuclear potential, while on the other corrections that are small in the aforementioned power series should be perturbative in principle. Recently, it has been noted…

Automated algorithm design for convex optimization problems with linear equality constraints
Ibrahim K. Ozaslan, Wuwei Wu, Jie Chen, Tryphon T. Georgiou, Mihailo R. Jovanovic
https://arxiv.org/abs/2509.20746

Automated algorithm design for convex optimization problems with linear equality constraints
Synthesis of optimization algorithms typically follows a {\em design-then-analyze\/} approach, which can obscure fundamental performance limits and hinder the systematic development of algorithms that operate near these limits. Recently, a framework grounded in robust control theory has emerged as a powerful tool for automating algorithm synthesis. By integrating design and analysis stages, fundamental performance bounds are revealed and synthesis of algorithms that achieve them is enabled. In …

Prediction-Powered Communication with Distortion Guarantees
Matteo Zecchin, Unnikrishnan Kunnath Ganesan, Giuseppe Durisi, Petar Popovski, Osvaldo Simeone
https://arxiv.org/abs/2509.24373

Prediction-Powered Communication with Distortion Guarantees
The development of 6G wireless systems is taking place alongside the development of increasingly intelligent wireless devices and network nodes. The changing technological landscape is motivating a rethinking of classical Shannon information theory that emphasizes semantic and task-oriented paradigms. In this paper, we study a prediction-powered communication setting, in which devices, equipped with artificial intelligence (AI)-based predictors, communicate under zero-delay constraints with str…

Koopman Operator Based Linear Model Predictive Control for 2D Quadruped Trotting, Bounding, and Gait Transition
Chun-Ming Yang, Pranav A. Bhounsule
https://arxiv.org/abs/2507.14605

Koopman Operator Based Linear Model Predictive Control for 2D Quadruped Trotting, Bounding, and Gait Transition
Online optimal control of quadrupedal robots would enable them to plan their movement in novel scenarios. Linear Model Predictive Control (LMPC) has emerged as a practical approach for real-time control. In LMPC, an optimization problem with a quadratic cost and linear constraints is formulated over a finite horizon and solved on the fly. However, LMPC relies on linearizing the equations of motion (EOM), which may lead to poor solution quality. In this paper, we use Koopman operator theory and …

Shadows from thin accretion disks of parametrized black hole solutions
Gonzalo J. Olmo, Jo\~ao Lu\'is Rosa, Diego Rubiera-Garcia, Alejandro Rueda, Diego S\'aez-Chill\'on G\'omez
https://arxiv.org/abs/2507.16580

Shadows from thin accretion disks of parametrized black hole solutions
We discuss the optical appearance from thin accretion disks in parametrized black holes, namely, solutions characterized by an arbitrarily large number of parameters without any regards to the theory of the gravitational and matter fields they come from. More precisely, we consider the leading-order terms of the spherically symmetric Johanssen-Psaltis (JP) and Konoplya-Zhidenko (KZ) parametrizations after imposing constraints from asymptotic flatness and solar system observations. Furthermore, …

Entanglement Complexity in Many-body Systems from Positivity Scaling Laws
Anna O. Schouten, David A. Mazziotti
https://arxiv.org/abs/2509.02944 https://arx…

Entanglement Complexity in Many-body Systems from Positivity Scaling Laws
Area laws describe how entanglement entropy scales and thus provide important necessary conditions for efficient quantum many-body simulation, but they do not, by themselves, yield a direct measure of computational complexity. Here we introduce a complementary framework based on $p$-particle positivity conditions from reduced density matrix (RDM) theory. These conditions form a hierarchy of $N$-representability constraints for an RDM to correspond to a valid $N$-particle quantum system, becomin…

An analysis of nuclear parton distribution function based on Kullback-Leibler divergence
Shu-Man Hu, Ao-Sheng Xiong, Ji Xu, Fu-Sheng Yu, Ji-Xin Yu
https://arxiv.org/abs/2508.05171

An analysis of nuclear parton distribution function based on Kullback-Leibler divergence
In this work, we present an attempt to quantify the difference between nuclear parton distribution functions (nPDFs) in different nuclei and parton distribution functions (PDFs) in free nucleons using the Kullback-Leibler (KL) divergence, a measure widely employed in quantum information theory. By introducing certain constraints and the ``minimum relative entropy'' hypothesis, we can determine the shape of the structure function in the intermediate-$x$ region, which is intimately connected with…

Causal Theories of Relativistic Hydrodynamics
Raphael E. Hoult
https://arxiv.org/abs/2509.22862 https://arxiv.org/pdf/2509.22862

Causal Theories of Relativistic Hydrodynamics
The first-order textbook formulations of relativistic viscous hydrodynamics are unstable and acausal. These shortcomings may be rectified by using effective theories which maintain stability and causality. In this dissertation, which is intended to also serve as an introduction to the field, causal theories of relativistic hydrodynamics are developed and explored. Conditions are obtained for a linearized analysis to predict the non-linear causality of a theory, and constraints are found on shor…

Frequentist Cosmological Constraints from Full-Shape Clustering Measurements in DESI DR1
James Morawetz, Hanyu Zhang, Marco Bonici, Will Percival, Andrea Crespi, Jessica Nicole Aguilar, Steven Ahlen, Davide Bianchi, David Brooks, Francisco Javier Castander, Todd Claybaugh, Shaun Cole, Andrei Cuceu, Axel de la Macorra, Arnaud de Mattia, Biprateep Dey, Peter Doel, Simone Ferraro, Andreu Font-Ribera, Jaime E. Forero-Romero, Enrique Gazta\~naga, Satya Gontcho A Gontcho, Gaston Gutierrez, C…

Frequentist Cosmological Constraints from Full-Shape Clustering Measurements in DESI DR1
We perform a frequentist analysis using the standard profile likelihood method for clustering measurements from Data Release 1 of the Dark Energy Spectroscopic Instrument (DESI). While Bayesian inferences for Effective Field Theory models of galaxy clustering can be highly sensitive to the choice of priors for extended cosmological models, frequentist inferences are not susceptible to such effects. We compare Bayesian and frequentist constraints for the parameter set $\{σ_8, H_0, Ω_{\rm{m}}, …

Nonlinear causality of Israel-Stewart theory with diffusion
Ian Cordeiro, F\'abio S. Bemfica, Enrico Speranza, Jorge Noronha
https://arxiv.org/abs/2507.20064 https://…

Nonlinear causality of Israel-Stewart theory with diffusion
We present the first fully nonlinear causality constraints in $D = 3 + 1$ dimensions for Israel-Stewart theory in the presence of energy and number diffusion in the Eckart and Landau hydrodynamic frames, respectively. These constraints are algebraic inequalities that make no assumption on the underlying geometry of the spacetime, or the equation of state. In order to highlight the distinct physical and structural behavior of the two hydrodynamic frames, we discuss the special ultrarelativistic …

Phenomenology of a Kinetic Higgs Portal
Anisha, Lisa Biermann, Christoph Englert, Margarete M\"uhlleitner
https://arxiv.org/abs/2510.00686 https://arx…

Phenomenology of a Kinetic Higgs Portal
We explore the phenomenological consequences of non-minimal hidden sector interactions on observable correlations in the Higgs sector, mediated through the $\mathbb{Z}_2$-symmetric Higgs portal. Particular attention is given to non-standard momentum dependencies of the hidden sector scalar, which arise naturally in an effective field theory (EFT) framework. We demonstrate that perturbatively reliable constraints can be derived from four-top quark production data and precision measurements of Hi…

Breaking global symmetries with locality-preserving operations
Michele Mazzoni, Luca Capizzi, Lorenzo Piroli
https://arxiv.org/abs/2508.15892 https://arxiv…

Breaking global symmetries with locality-preserving operations
In the general framework of quantum resource theories, one typically only distinguishes between operations that can or cannot generate the resource of interest. In many-body settings, one can further characterize quantum operations based on underlying geometrical constraints, and a natural question is to understand the power of resource-generating operations that preserve locality. In this work, we address this question within the resource theory of asymmetry, which has recently found applicati…

Investigating $f(R)$-Inflation: background evolution and constraints
Elisa Fazzari, Chiara De Leo, Giovanni Montani, Matteo Martinelli, Alessandro Melchiorri, Guadalupe Ca\~nas-Herrera
https://arxiv.org/abs/2507.13890

Investigating $f(R)$-Inflation: background evolution and constraints
In this work, we investigate the possibility of generating an inflationary mechanism within the framework of a metric-$f(R)$ modified gravity theory, formulated in the Jordan frame. We explore whether the scalar field, non-minimally coupled to gravity and emerging in the Jordan frame, can play the role of the primordial inflaton. Particular attention is devoted to constructing a dynamical scenario in the Jordan frame that exhibits a slow-rolling phase for the scalar field and admits a quasi-de …

Listening to the long ringdown: A novel way to pinpoint the EOS in neutron-star cores
Christian Ecker, Tyler Gorda, Aleksi Kurkela, Luciano Rezzolla
https://arxiv.org/abs/2509.18665

Electric Dipole Moments and New Physics
Maxim Pospelov, Adam Ritz
https://arxiv.org/abs/2509.23531 https://arxiv.org/pdf/2509.23531

Electric Dipole Moments and New Physics
Searches for intrinsic electric dipole moments (EDMs) of nucleons, atoms and molecules are precision flavor-diagonal probes of new $CP$-odd physics, as motivated by the need to explain the matter-antimatter asymmetry in the universe. We review and summarise the effective field theory analysis of the observable EDMs in terms of a general set of $CP$-odd operators at 1~GeV, and the ensuing model-independent constraints on new physics. We also review and discuss the EDMs induced by $CP$-violation …

Constraints on the Sen black hole mass and charge from quasi-periodic oscillations
Kuantay Boshkayev, Marco Muccino
https://arxiv.org/abs/2508.15682 https://

Constraints on the Sen black hole mass and charge from quasi-periodic oscillations
We analyze quasi-periodic oscillation data from selected X-ray binary systems hosting black holes. To model the spacetime geometry, we resort the static Sen solution -- originally derived in the framework of heterotic string theory -- which reduces to the Schwarzschild spacetime for vanishing electric charge. By fitting the observed frequencies within the relativistic precession model, we constrain the mass and charge parameters of the Sen black hole and discuss their astrophysical implications…

Constraints on Long-Range Forces in De Sitter Space
Daniel Baumann, Kurt Hinterbichler, Callum R. T. Jones, Austin Joyce, Hayden Lee, Jiajie Mei, Nathan Meurrens
https://arxiv.org/abs/2508.18353

Constraints on Long-Range Forces in De Sitter Space
The representation theory of de Sitter space admits partially massless (PM) particles, but whether such particles can participate in consistent interacting theories remains unclear. We investigate the consistency of theories containing PM fields, particularly when these fields are coupled to gravity. Our strategy exploits the fact that PM fields correspond to partially conserved currents on the spacetime boundary, which generate symmetries. These symmetries place stringent constraints on correl…

A Convergent Primal-Dual Algorithm for Computing Rate-Distortion-Perception Functions
Chunhui Chen, Linyi Chen, Xueyan Niu, Hao Wu
https://arxiv.org/abs/2508.13486 https://

A Convergent Primal-Dual Algorithm for Computing Rate-Distortion-Perception Functions
Recent advances in Rate-Distortion-Perception (RDP) theory highlight the importance of balancing compression level, reconstruction quality, and perceptual fidelity. While previous work has explored numerical approaches to approximate the information RDP function, the lack of theoretical guarantees remains a major limitation, especially in the presence of complex perceptual constraints that introduce non-convexity and computational intractability. Inspired by our previous constrained Blahut-Arim…

Entanglement Entropy of Quantum Corners
Luca Ciambelli, Jerzy Kowalski-Glikman, Ludovic Varrin
https://arxiv.org/abs/2507.16800 https://

Entanglement Entropy of Quantum Corners
In gravitational theories with boundaries, diffeomorphisms can become physical and acquire a non-vanishing Noether charge. Using the covariant phase space formalism, on shell of the gravitational constraints, the latter localizes on codimension-$2$ surfaces, the corners. The corner proposal asserts that these charges, and their algebras, must be important ingredients of any quantum gravity theory. In this manuscript, we continue the study of quantum corner symmetries and algebras by computing t…

Reanalyzing DESI DR1: 1. $\Lambda$CDM Constraints from the Power Spectrum and Bispectrum
Anton Chudaykin, Mikhail M. Ivanov, Oliver H. E. Philcox
https://arxiv.org/abs/2507.13433 …

Reanalyzing DESI DR1: 1. $Λ$CDM Constraints from the Power Spectrum and Bispectrum
We present the first independent re-analysis of the galaxy clustering data from DESI Data Release 1, utilizing an effective field theory (EFT)-based full-shape model. We analyze the power spectra and bispectra of the public catalogs using a custom-built pipeline based on window-deconvolved quasi-optimal estimators, carefully accounting for all relevant systematic effects. Compared to the official collaboration analysis, we add the galaxy power spectrum hexadecapole and the bispectrum monopole, …

Toward the Analytic Bootstrap of Energy Correlators
Jianyu Gong, Andrzej Pokraka, Kai Yan, Xiaoyuan Zhang
https://arxiv.org/abs/2509.22782 https://arxiv.or…

Toward the Analytic Bootstrap of Energy Correlators
In this paper, we present a framework for the analytic bootstrap of three-point energy correlators, a crucial observable in $\mathcal{N}=4$ super Yang-Mills theory and quantum chromodynamics (QCD). Our approach combines spherical contour techniques, general physical constraints such as pole cancellations, and power correction data in the singular limits to determine its analytic expression. In contrast to previous bootstrap studies restricted to scattering amplitudes for supersymmetric theories…

Associativity of celestial OPE, higher spins and self-duality
Mattia Serrani
https://arxiv.org/abs/2508.16804 https://arxiv.org/pdf/2508.16804

Associativity of celestial OPE, higher spins and self-duality
We highlight and clarify the connection between several ideas and self-dual theories: (a) the operator product expansion (OPE) associativity in celestial conformal field theory (CCFT); (b) the vanishing of tree-level amplitudes; (c) the Jacobi identity for the "gauge" algebra; (d) the light-cone holomorphic constraints. Naturally, (b), (c), or (d) are closely related to self-duality. In particular, the recently classified arXiv:2505.12839 chiral higher-spin theories with one- and two-derivative…

Cosmological constraints on Galileon dark energy with broken shift symmetry
William J. Wolf, Pedro G. Ferreira, Carlos Garc\'ia-Garc\'ia
https://arxiv.org/abs/2509.17586

Cosmological constraints on Galileon dark energy with broken shift symmetry
Current cosmological data seem to show that dark energy is evolving in time and that it possibly crossed the phantom divide in the past. So far the only theories that lead to such a behavior involve a non-trivial coupling between dark energy, in the form of a scalar field, and the gravitational or matter sector. We show that there is another possibility involving both a non-trivial kinetic sector in a cubic Galileon theory and a scalar field potential that breaks the Galileon shift symmetry, wh…

Sub-GeV Sterile Neutrino as a Probe of Neutrino Mass Generation in the Minimal Left-Right Symmetric Model
Gang Li, Ying-Ying Li, Sida Lu, Ye-Ling Zhou
https://arxiv.org/abs/2508.15609

Sub-GeV Sterile Neutrino as a Probe of Neutrino Mass Generation in the Minimal Left-Right Symmetric Model
The minimal left-right symmetric model (mLRSM) provides an elegant and testable framework for addressing the origin of neutrino masses. We examine the constraints on the sub-GeV sterile neutrino in the type-II seesaw scenario of the mLRSM without left-right mixing, taking limits from collider searches, meson decays, supernovae, neutrinoless double beta ($0νββ$) decay and cosmology. Specifically, we derive the $0νββ$ decay constraints using the advanced effective field theory approach and …

Stringy Constraints on Modular Flavor Models
Keiya Ishiguro, Takafumi Kai, Tatsuo Kobayashi, Hajime Otsuka
https://arxiv.org/abs/2508.12392 https://arxiv.o…

Stringy Constraints on Modular Flavor Models
We investigate stringy constraints on moduli spaces in modular flavor models by analyzing moduli-dependent threshold corrections in heterotic string vacua. While moduli play a crucial role in determining the flavor structure of fermions predicted by modular flavor models, the parameter space in which their vacuum expectation values are allowed has not been fully explored. In this work, within the framework of perturbative heterotic string theory on toroidal orbifolds, we derive constraints on t…

On Entropy Bounds for Irrelevant Operators
Lucas Fern\'andez-Sarmiento, Riccardo Penco, Rachel A Rosen
https://arxiv.org/abs/2508.14978 https://arxiv.o…

On Entropy Bounds for Irrelevant Operators
Consistency constraints for low-energy theories, especially those lacking Lorentz invariance, have recently garnered attention. Building on results from black hole thermodynamics, we investigate the conjecture that leading irrelevant deformations of a conformal field theory in the infrared must increase the system's entropy. We show that this entropy-positivity conjecture is equivalent to a decrease in the thermal grand potential at a fixed temperature. We then evaluate this proposal against va…