Quantum Horizon Tadpole and Emergence of a de Sitter InteriorIn a recent paper Chu:2026dhx, the quantum stability of the fuzzy sphere was established at large but finite N. In addition, a tadpole was identified for the scaling fluctuation mode of the…Chong-Sun Chu·Aug 21, 2026SaveLearn
BMPV black holes in higher-derivative supergravityThere are five independent four-derivative superinvariants for the five-dimensional STU model, of which two are vector invariants that do not involve curvature tensors. We construct the corrected…Yide Cai, Sabarenath Jayaprakash, James T. Liu et al.·Aug 21, 2026SaveLearn
Target-space fusion of classical topological defectsClassical fusion of sigma-model defects is commonly approached by combining their worldsheet actions and eliminating the intermediate fields. This procedure, however, does not systematically identify…Saskia Demulder, Chuying Wang·Aug 21, 2026SaveLearn
Canonical representation of the Snyder-de Sitter algebra with correct flat and commutative limitsThe Snyder--de Sitter algebra provides a Lorentz-covariant deformation of phase-space geometry characterized by a curvature parameter α and a noncommutativity parameter β. We construct an…V. G. Kupriyanov, E. L. F. de Lima·Aug 21, 2026SaveLearn
Finite Weyl polynomials and the approach to Tsirelson's bound in relativistic scalar quantum field theoryWe construct four bounded Hermitian operators, each one a finite polynomial in the unitary Weyl operators, for the Bell-CHSH inequality in a free massive scalar field in 1+1 dimensions. The…J. G. A. Caribé, M. S. Guimaraes, I. Roditi et al.·Aug 21, 2026SaveLearn
From Gross-Manes to Alday-MaldacenaMinimal surfaces govern the classical limit of several important observables in string theory. Two basic examples are the Gross--Manes saddle for high-energy string scattering in flat space and the…Leonardo Pipolo de Gioia, Sabrina Pasterski, Pedro Vieira·Aug 20, 2026SaveLearn
Supersymmetric Virasoro Minimal Strings: Unified Perturbative and Non-Perturbative TreatmentThere are four known N=1 supersymmetric Virasoro minimal string theories, naturally coming in two pairs and labeled as 0A and 0B. We observe here that all four are naturally…Clifford V. Johnson·Aug 20, 2026SaveLearn
Threshold Corrections in Heterotic String Theory from Conformal Perturbation TheoryWe use conformal perturbation theory to compute one-loop threshold corrections to the Kähler potential of the heterotic string. For this we consider the theory compactified at the Gepner point of the…Dilan Nur Demirtaş, Christoph A. Keller, Manki Kim·Aug 20, 2026SaveLearn
Decomposing Grassmann Monomials for Superfield ExpansionsSuperspace extends spacetime by anticommuting Grassmann coordinates, whose indices may transform under spin and flavour groups. Decomposing Grassmann monomials into independent invariant structures…Jesse Woods·Aug 20, 2026SaveLearn
Alakazam: Symbolic Tensor Algebra for Field Theory in JuliaWe present "Alakazam", a Julia package for performing symbolic manipulations of tensor expressions arising in the study of field theories and quantum mechanics. This will serve as a powerful…Jesse Woods·Aug 20, 2026SaveLearn
Maximal Total Quantum Dimension at Bounded Rank in WZW Modular Tensor CategoriesWe determine the maximal torus topological entanglement entropy (TEE) at bounded torus ground-state degeneracy within simply connected untwisted Wess--Zumino--Witten theories. For a fixed modular…Ce Shen·Aug 20, 2026SaveLearn
Singularity-Rank Signatures in Generalized Dirac Oscillators near a BTZ HorizonWe study singular generalized Dirac-oscillator couplings in the near-horizon region of a nonextremal BTZ black hole. An effective covariant construction adapted to the stationary horizon congruence…João V. R. Alencar, Allan R. P. Moreira, João B. R. Silva et al.·Aug 20, 2026SaveLearn
Hilbert space relation from dS to AdS through Reflection PositivityDe Sitter unitarity and reflection positivity are logically independent. We study their relation for a free scalar field on a fixed de Sitter background, restricting attention to the one-particle…Yu-ki Suzuki·Aug 20, 2026SaveLearn
A Note on a High-Energy Limit of Gravitational Perturbation TheoryThe post-Minkowskian expansion of general relativity expands the metric in Newton's constant G around flat space-time, but much effort currently focuses on ways to extend its range of…Poul H. Damgaard, Ludovic Plante·Aug 20, 2026SaveLearn
Massive spin-2 supermultiplet and supergravityIn this work, we consider the interaction of massless N=1 supergravity with a massive (2,3/2,3/2,1) supermultiplet, as a possible candidate for a supersymmetric extension to bigravity. A gauge…Yu. M. Zinoviev·Aug 20, 2026SaveLearn
One more Sine-Gordon soliton in AdSIn previous work arXiv:2604.00160, we found soliton solutions in a deformation of the sine-Gordon theory in AdS spacetime that, in the infinite-radius limit, reduce to single-soliton solutions in…D. V. Diakonov·Aug 20, 2026SaveLearn
Holographic Dual of Synge's Identity in AdS/CFTWe identify CFT counterparts of Synge's identity for finite AdS geodesics in arbitrary dimensions. Starting from exact finite bulk--boundary pairs, the Synge equation induces endpoint scale…Bingbing Chen, Deyou Chen·Aug 20, 2026SaveLearn
A Stationary Composition Law for Schwinger-Keldysh Effective ActionsLet W O[J] and W C[J] denote the connected generating functionals of an open system and its closed system counterpart, and define the environment-induced contribution $W…Denis Comelli·Aug 20, 2026SaveLearn
Supergroup Gauged Linear Sigma Models and their Physical MathematicsWe construct 2d N=(2,2) gauged linear sigma models with U(1|1)N supergauge group possibly with superpotential. Despite being nonunitary, one can still study their space of…Arif Er, Zhangcheng Liu, Meng-Chwan Tan·Aug 20, 2026SaveLearn
Tropical and Stringy Integrals for In-In CorrelatorsWe introduce tropical and stringy integrals for fixed-graph contributions to cosmological in-in correlators of conformally coupled scalars. The full-time representation factorizes into a…Song He, Xiang Li, Yong-Xiang Su et al.·Aug 20, 2026SaveLearn
Higher Chern--Simons Theory in 2n+2 Dimensions for Balanced 2-term L∞-AlgebrasWe construct a semistrict higher Chern--Simons (HCS) gauge theory in 2n+2 dimensions associated with balanced 2-term L∞-algebras. Starting from the homotopy Maurer--Cartan theory, we first…Danhua Song, Yibo Wang·Aug 20, 2026SaveLearn
Holographic Bit Threads from String-Diagrammatic Quantum Information FlowBit threads, arising as the convex dual of the minimal-surface formula for holographic entanglement entropy, are line-like structures with nontrivial bulk trajectories. Their physical picture has…Yi-Yu Lin, Song Cheng·Aug 19, 2026SaveLearn
BCFW recursion for light-like Wilson loop correlatorsWe apply the idea of holomorphic linking (arXiv:1101.1329) to correlators of multiple light-like loop operators in N=4 super Yang-Mills theory. This allows us to extend the BCFW recursion…James Drummond, Matthew Rochford, Rowan Wright·Aug 19, 2026SaveLearn
Lorentzian Kähler-Dirac fermionsWe examine the formulation of Kähler fermions on spacetimes with Lorentz signature. In practice we focus on Minkowski spacetime since most of the difficulties that are encountered are visible even…Simon Catterall, Jay Hubisz·Aug 19, 2026SaveLearn
Stochastic Schwinger Effect: de Sitter and beyondWe develop a stochastic formulation of the Schwinger effect in de Sitter spacetime using the Schwinger--Keldysh (in-in) formalism, tailored to particle production by non-stationary gauge backgrounds…Lucas Vicente García-Consuegra, Azadeh Maleknejad·Aug 19, 2026SaveLearn