Le Roy, Lerch and Legendre chi functions and generalised Borel-Le Roy transform

This paper presents a unified framework based on a reformulated Indicial Umbral Theory to study the properties and generalizations of the Le Roy, Lerch, and Legendre chi functions, while incorporating the Borel-Le Roy transform to extend the formalism to divergent series via resummation techniques.

Giuseppe Dattoli (ENEA, Nuclear Department, Frascati Research Center, Frascati), Roberto Ricci (ENEA, Nuclear Department, Frascati Research Center, Frascati)Fri, 13 Ma🔢 math-ph

The Euclidean ϕ24\phi^4_2 theory as a limit of an inhomogeneous Bose gas

This paper proves that the grand canonical Gibbs state of an inhomogeneous two-dimensional interacting Bose gas converges to the renormalized Euclidean ϕ24\phi^4_2 field theory in the high-density, short-range interaction limit, overcoming significant mathematical challenges posed by the need for divergent counterterm functions rather than simple scalars due to the presence of a trapping potential.

Cristina Caraci, Antti Knowles, Alessio Ranallo, Pedro Torres GiesteiraFri, 13 Ma🔢 math-ph

Localization and unique continuation for non-stationary Schrödinger operators on the 2D lattice

This paper extends Ding and Smart's 2020 Anderson localization results for random Schrödinger operators on the 2D lattice to non-identically distributed potentials by replacing the identical distribution assumption with uniform bounds on the essential range and variance, utilizing Bernoulli decompositions to establish a quantitative unique continuation principle and Wegner estimate that prove localization at the bottom of the spectrum.

Omar Hurtado2026-03-11🔢 math-ph

Bridging Classical and Quantum Information Scrambling with the Operator Entanglement Spectrum

This paper demonstrates that the operator entanglement spectrum serves as a powerful diagnostic tool to distinguish between classical reversible automaton dynamics and fully quantum chaotic dynamics, revealing that the former follows Bernoulli random matrix statistics while the latter follows Gaussian statistics, and showing that introducing a constant number of superposition-generating gates is sufficient to drive automaton circuits into the universal random-circuit chaos class.

Ben T. McDonough, Claudio Chamon, Justin H. Wilson + 1 more2026-03-11🔢 math-ph

Brackets in multicontact geometry and multisymplectization

This paper introduces a graded bracket of forms on multicontact manifolds that satisfies a graded Jacobi identity and Leibniz rules, utilizes multisymplectization to connect these structures to multisymplectic geometry for deriving field equations, and applies these findings to analyze observable evolution, dissipation phenomena, and classical dissipative field theories.

Manuel de León, Rubén Izquierdo-López, Xavier Rivas2026-03-11🔢 math-ph

Axial Symmetric Navier Stokes Equations and the Beltrami /anti Beltrami spectrum in view of Physics Informed Neural Networks

This paper establishes the theoretical framework for solving axial symmetric Navier-Stokes equations in a cylindrical topology by constructing a complete basis of harmonic 1-forms comprising Beltrami, anti-Beltrami, and closed components, thereby reducing the problem to a hierarchy of quadratic relations suitable for future optimization via Physics-Informed Neural Networks.

Pietro Fré2026-03-10🔢 math-ph

Delocalization of the height function of the six-vertex model

This paper proves that the height function of the six-vertex model with parameters a=b=1a=b=1 and $1 \le c \le 2exhibitsdelocalizationwithlogarithmicvariance,therebycompletingthecharacterizationofthemodelsphasetransitionbycomplementingtheknownlocalizationbehaviorfor exhibits delocalization with logarithmic variance, thereby completing the characterization of the model's phase transition by complementing the known localization behavior for c > 2$.

Hugo Duminil-Copin, Alex Karrila, Ioan Manolescu + 1 more2026-03-06🔬 physics

Formal multiparameter quantum groups, deformations and specializations

This paper introduces formal multiparameter quantum universal enveloping algebras (FoMpQUEA) as a generalization of Drinfeld's quantum groups, demonstrating that they are closed under toral twists and 2-cocycle deformations, establish a bijective correspondence with multiparameter Lie bialgebras via quantization and semiclassical limits, and prove that specialization and deformation processes commute.

Gastón Andrés García, Fabio Gavarini2026-03-06🔬 physics