hep-th

Four inequivalent paths to Thermality in Minkowski spacetime

This paper demonstrates that thermal spectra in Minkowski spacetime can arise through inequivalent null-shifted wedge transformations that produce pure, non-Gibbsian states in a single chiral sector without relying on the horizon-induced entanglement characteristic of the standard Unruh effect.

Towards a classification of graded unitary ${\mathcal W}_3$ algebras

This paper demonstrates that, under specific filtration assumptions, four-dimensional unitarity restricts graded unitary $\mathcal{W}_3$ vertex algebras arising from the SCFT/VOA correspondence to precisely those realizable via principal Drinfel'd--Sokolov reduction of boundary-admissible $\mathfrak{sl}_3$ affine current algebras, which correspond to $(A_2,A_q)$ Argyres--Douglas theories and $(3,q+4)$ minimal models.

Nonequilibrium crossover in the supercritical region from quench dynamics

This paper proposes a novel nonequilibrium dynamical approach to characterize supercritical subphases by identifying a new crossover line in a holographic superfluid model, defined by a turning point in the invasion velocity of topological defects following a rapid quench, which encodes both thermodynamic and kinetic information distinct from classical equilibrium lines.

Flavoured Lattice Schwinger Model with Chiral Anomaly

This paper introduces a flavoured lattice Schwinger model that resolves the fermion doubling problem by staggering a $\mathbb{Z}_2$ flavour degree of freedom, thereby preserving an exact axial $U(1)$ symmetry at finite lattice spacing and providing a bulk-boundary interpretation of the chiral anomaly via helical edge states on a topological insulator.

Covariant phase space approach to noncommutativity in tensile and tensionless open strings

Using the covariant phase space formalism, this paper provides a unified description of noncommutativity in both tensile and tensionless open strings, demonstrating how constant Kalb-Ramond and gauge fields induce boundary-supported symplectic structures that lead to noncommutative endpoint coordinates.

Deferred Cyclotomic Representation for Stable and Exact Evaluation of q-Hypergeometric Series

Observational constraints on nonlocal black holes via gravitational lensing

This paper investigates gravitational lensing around static, spherically symmetric DD black holes within revised Deser-Woodard nonlocal gravity, deriving analytical deflection angles and using lensing observables alongside quasinormal mode constraints to show that the model remains consistent with General Relativity at the 1.13$\sigma$ level.

Dynamical Casimir effect in the worldline formulation

This paper evaluates the effective action for the Dynamical Casimir Effect of a real scalar field in $d+1$ dimensions using a worldline formulation with a spacetime-dependent mass term, demonstrating how the path integral factorizes for near-planar geometries and recovering Dirichlet boundary conditions with systematic corrections in the strong coupling limit.

Structural Obstruction to Replica Symmetry Breaking for Multi-Entropy in Random Tensor Networks

This paper demonstrates that multi-entropy in random tensor networks structurally precludes replica symmetry breaking for any Rényi index or multipartite number due to incompatible boundary permutations, a finding that sharply contrasts with the behavior of entanglement negativity and is robust even under minimal bulk gauge constraints.

Atiyah--Singer Index Theorem for Non-Hermitian Dirac Operators

Using heat kernel methods, this paper demonstrates that the Atiyah–Singer index theorem extends to non-Hermitian Dirac operators, proving that their index remains topologically protected provided the operators are diagonalizable and satisfy specific ellipticity conditions.