More on OTOCs and Chaos in Quantum Mechanics -- Magnetic FieldsWe revisit thermal out-of-time-order correlators (OTOCs) in single-particle quantum systems, focusing on magnetic billiards. Using the stadium billiard as a testbed, we compute the thermal OTOC…Cameron Beetar, Jeff Murugan·Feb 5, 2026SaveLearn
Towards Worst-Case Guarantees with Scale-Aware InterpretabilityNeural networks organize information according to the hierarchical, multi-scale structure of natural data. Methods to interpret model internals should be similarly scale-aware, explicitly tracking…Lauren Greenspan, David Berman, Aryeh Brill et al.·Feb 5, 2026SaveLearn
An introduction to string states and their interactionsThe subject matter of these lecture notes is the open bosonic critical string, its perturbative spectrum and interactions. We begin with a brief review of classical string propagation, quantization,…Chrysoula Markou·Feb 5, 2026SaveLearn
Chiral effective potential in 4D, N=4 SYM theoryWe consider 4D, N=4, SU(N) super Yang-Mills theory formulated in terms of N=1 superfields where the leading low-energy contributions to effective action are given by…I. L. Buchbinder, R. M. Iakhibbaev, D. I. Kazakov et al.·Feb 4, 2026SaveLearn
Stable Causality and Microcausality for Drummond-Hathrell PhotonsLocal superluminal photon propagation arises at O(α/me2) in the Drummond Hathrell (DH) effective action obtained by integrating out the electron in QED coupled to gravity. Whether such…Madhukar Deb, Jay Desai, Diptimoy Ghosh·Feb 4, 2026SaveLearn
Dynamics of Heavy Operators in N=4 SYM: Integrated Correlators and AdS BubblesWe study integrated correlation functions of half-BPS operators in SU(N) N = 4 supersymmetric Yang-Mills theory (SYM) involving two superconformal primary operators in the stress-tensor…Francesco Aprile, Daniele Dorigoni, Rudolfs Treilis·Feb 4, 2026SaveLearn
Improving 3d Ising OPE Coefficients with Fuzzy Sphere Conformal GeneratorsWe use the K special conformal generator in the Fuzzy sphere setup of the Ising CFT to determine primary states. For Δ 8, we recover the known primaries and find several new ones,…Giulia Fardelli, A. Liam Fitzpatrick, Emanuel Katz·Feb 4, 2026SaveLearn
Curvature divergences and gravity decoupling in Calabi--Yau rigid limitsFour-dimensional N=2 supergravity theories become rigid in gravity-decoupling limits. We study this effect for type II string compactifications on general Calabi--Yau manifolds, focusing…Alberto Castellano, Fernando Marchesano, Lorenzo Paoloni·Feb 4, 2026SaveLearn
Black Hole Thermodynamic Ensembles, Euclidean Action and Legendre TransformationIn thermodynamics, a Legendre transformation of the free energy provides a mapping between different statistical ensembles. In this work, we demonstrate that performing a Legendre transformation of…Liang Ma·Feb 4, 2026SaveLearn
Algebro-geometric bootstrapping from OPE decouplingWe conjecture that decoupling relations in the operator product expansion of a 4d N=2 superconformal field theory (SCFT) are encoded by an algebro-geometric object: a bifiltered affine…Monica Jinwoo Kang, Craig Lawrie, Jaewon Song·Feb 4, 2026SaveLearn
Finite-dimensional algebras, gauge-string duality and thermodynamicsGauge-invariant polynomial functions of matrix and tensor variables capture combinatorial structures of gauge-string duality, which can be usefully organised using finite-dimensional associative…Sanjaye Ramgoolam·Feb 4, 2026SaveLearn
Translating auxiliary symmetries between Schottky uniformization and Jacobi parametrizationThe explicit description and computation of functions defined on Riemann surfaces of various genera depends on the choice of language: while the Jacobi parametrization is widely known and used, the…Manuel Berger, Johannes Broedel·Feb 4, 2026SaveLearn
The holographic Fermions over the ionic lattice with CDWWe study the holographic Fermion as a probe over the background with ionic lattice, which may undergo a phase transition with the development of charge density wave by the spontaneous breaking of the…Kai Li, Yi Ling, Peng Liu et al.·Feb 4, 2026SaveLearn
Canonical differential equations beyond polylogsFeynman integrals whose associated geometries extend beyond the Riemann sphere, such as elliptic curves and Calabi-Yau varieties, are increasingly relevant in modern precision calculations. They…Claude Duhr, Sara Maggio, Christoph Nega et al.·Feb 4, 2026SaveLearn
Quantum fields from real-time ensemble dynamicsRelativistic quantum field theory (QFT) is commonly formulated in terms of operators, asymptotic states, and covariant amplitudes, a perspective that tends to obscure the real-time origin of field…Yong Zhang·Feb 4, 2026SaveLearn
Observers, α-parameters, and the Hartle-Hawking stateIn this paper we extend recent ideas about observers and closed universes to theories where observers can be fluctuated into existence in the Hartle-Hawking state. This introduces a phenomenon that…Daniel Harlow·Feb 3, 2026SaveLearn
Thermodynamics of the Heisenberg XXX chain with negative spinWe study the thermodynamics of the isotropic Heisenberg XXX spin chain with negative spin, focusing on the case s=-1. The model is equivalent to the quantum lattice nonlinear Schrödinger (NLS)…Rong Zhong, Yang-Yang Chen, Kun Hao et al.·Feb 3, 2026SaveLearn
Classifying Causal Nonlinear Electrodynamics via φ-Parity and Irrelevant DeformationsWe investigate the classification of self-dual nonlinear electrodynamic (NED) theories based on their analyticity properties, which are directly linked to invariance under a discrete φ-parity…H. Babaei-Aghbolagh, Komeil Babaei Velni, Song He et al.·Feb 3, 2026SaveLearn
Degenerate vortices and world-line instantons in three-dimensional gauge theoriesIn this paper we continue the study of particle-like topological solitons with degenerate masses and their mixing due to world-line instantons. Previously, this phenomenon was studied in…Evgenii Ievlev, Mikhail Shifman·Feb 3, 2026SaveLearn
Cosmological Correlator Discontinuities from Scattering AmplitudesRecent theoretical work has revealed that basic observables of quantum field theory in de Sitter space, known as in-in or cosmological correlators, exhibit surprisingly simple mathematical structure…Chandramouli Chowdhury, Sadra Jazayeri, Arthur Lipstein et al.·Feb 3, 2026SaveLearn
Entanglement Islands, Page curves and Phase Transitions of Kerr-AdS Black HolesWe study the Page curve and information paradox for Kerr AdS black hole in light of entanglement entropy by employing the recently proposed island paradigm. By incorporating the island rule, we show…Digen Das, Mozib Bin Awal, Prabwal Phukon·Feb 3, 2026SaveLearn
On E7+1/2 gauge theoryWe study gauge theory based on the intermediate Lie algebra E7+1/2, interpolating between E7 and E8. We propose a concrete UV completion via a 6d SCFT whose tensor branch description…Xin Wang, Yi-Nan Wang·Feb 2, 2026SaveLearn
Chiral Integrable Boundary States of ABJM Spin Chain from Reflection EquationsWe develop a general framework for constructing 2n-site chiral integrable matrix product states in Aharony-Bergman-Jafferis-Maldacena spin chain, based on reflection equations and the fusion…Yang Liu, Nan Bai, Mao-Zhong Shao et al.·Feb 2, 2026SaveLearn
AdS/CFT to dS/CFT: Some Recent DevelopmentsThese lecture notes aim to provide a pedagogical introduction to the AdS/CFT correspondence and its extensions to spacetimes with positive (de Sitter spacetime) and zero (flat spacetime) cosmological…Gopal Yadav·Feb 2, 2026SaveLearn
Verlinde lines, anyon permutations and commutant pairs inside E8,1 CFTWe develop a defect-theoretic refinement of meromorphic 2d CFTs in which the ordinary torus partition function -- often just the vacuum character -- does not reveal how states organize under symmetry…Naveen Balaji Umasankar, Arpit Das·Feb 2, 2026SaveLearn