The Hydrotope in the Water-Wave ActionThe Hydrotope gives a geometric representation of tree-level water-wave amplitudes with two negative spatial momenta as the volume of a hyperplane slice of a box. We trace the origin of this geometry…Qu Cao, Song He, Jirong Jing et al.·Aug 27, 2026SaveLearn
Quantum Chaos and Spread of States in Krylov Subspace: A Topical ReviewKrylov state complexity, or spread complexity, has emerged as a sharp and versatile diagnostic of quantum chaos, information spreading, and many-body dynamics. Built from the Lanczos algorithm and…Hyun-Sik Jeong, Juan F. Pedraza·Aug 27, 2026SaveLearn
Scalar QED effective action in dS: implications for primordial magnetogenesis and the running of coupling constantsParticles creation and vacuum polarization under the influence of both an electromagnetic field and a de~Sitter (dS) spacetime nonperturbatively probes quantum electrodynamics (QED) and quantum…Ehsan Bavarsad, Sang Pyo Kim, Clément Stahl et al.·Aug 26, 2026SaveLearn
The Capacity of Entanglement and Holographic Entropies at Finite ResourcesThe Ryu-Takayanagi formula equates the area of a minimal surface with the von Neumann entropy of a boundary subregion, and leaves two things about that identification open. The first is how sharply a…Ning Bao, Jacob March·Aug 26, 2026SaveLearn
Vortex-Antivortex Annihilation from BPS EquationsIn this work, we introduce a vortex-impurity model that admits BPS configurations containing both vortices and antivortices and allows vortex-antivortex annihilation to be described within the…J. P. S. Neto, J. G. F. Campos, A. Mohammadi·Aug 26, 2026SaveLearn
Gravitational Compton Amplitude to All Orders in Perturbation TheoryWe show how amplitudes from the scattering of gravitational waves off compact objects in worldline effective field theory can be efficiently computed to arbitrary order in Newton's constant G.…Miguel Correia, Giulia Isabella, Anna M. Wolz·Aug 26, 2026SaveLearn
Contact Structure-induced Symplectic Nearly Half-Flat SU(3) Structure in Finite-N Thermal M-TheoryThe M-theory dual of thermal QCD-like theories constructed in arXiv:1306.4339, 2004.07259 involves, as shown in arXiv:2211.13186, a closed G2-structure seven-fold M7…Aalok Misra·Aug 26, 2026SaveLearn
Inner products and closed universesWe study overlaps of late-time states in semiclassical de Sitter quantum gravity. In a family of deformations of de Sitter JT gravity, we compute the no-boundary wavefunction to one-loop and derive…Jordan Cotler, Kristan Jensen·Aug 26, 2026SaveLearn
Why Cooper pairs live in AdS2: a spectral analysis of the Yukawa-SYK modelWe establish the spectral foundation of the geometric formulation of Cooper pairing in the Yukawa--Sachdev--Ye--Kitaev model. Starting from the large-N bilocal effective action, we derive the…Veronika Carolin Stangier, Jörg Schmalian·Aug 26, 2026SaveLearn
Positivity in energy correlators and the event distribution formulaEnergy correlators are universal observables, well defined across a wide range of theories and spacetime dimensions, from gauge theory and conformal field theory to string theory. Energy correlators…Alexandre Belin, Nathan Borak, Johan Henriksson et al.·Aug 26, 2026SaveLearn
Renormalization in Liouville gravity and stochastic inflationMotivated by inflation and Liouville theory, we consider random d-dimensional geometries characterized by an overall scale factor ds2 = e2 ζ dx2 given in terms of a random Gaussian field…Jordan Cotler, Victor Ivo, Juan Maldacena·Aug 26, 2026SaveLearn
The facts on quantum self-dual Einstein gravity and self-dual Yang-Mills theorySelf-dual Einstein gravity is a one-loop exact, UV and IR finite, diffeomorphism invariant, non-unitary theory of quantum gravity in four dimensions. The only non-trivial amplitudes are the…Noah Miller·Aug 26, 2026SaveLearn
Massive Ghost Confinement, Dipole Equation and Multipole States in Quadratic GravityWe investigate the problem of confinement of massive ghost, which violates the unitarity of the physical S-matrix, in quadratic gravity on the basis of a manifestly covariant and local canonical…Ichiro Oda·Aug 26, 2026SaveLearn
Notes on Gepner ConstructionIn this note, we describe the Gepner construction purely as orbifold (rather than a beta-prescription or orbifold-like process). This is done by distinguishing orbifolding by a chiral symmetry from…Kanade Nishikawa, Taizan Watari·Aug 26, 2026SaveLearn
PEE threads and bit threads in gravitational subregions of AdSMotivated by the kinematic-space description of gravitational subregions Basu:2026hbg, we allow partial entanglement entropy (PEE) threads to be sourced not only from the asymptotic boundary,…Debarshi Basu, Qiang Wen·Aug 26, 2026SaveLearn
PEE threads and bit-threads in BTZ black brane and finite-cutoff AdS3We develop PEE thread flows for the planar BTZ black brane and finite-cutoff holography. Exact geodesic-distance kernels define source-resolved PEE thread currents whose superposition gives…Debarshi Basu, Ashish Chandra, Qiang Wen·Aug 26, 2026SaveLearn
Decoupling saddles of the gravitational index and the Farey tailWe first construct general saddles of the five-dimensional gravitational supersymmetric index with S1×R4 asymptotics, carrying an arbitrary number of electric charges and…Davide Cassani, Alejandro Ruipérez, Enrico Turetta·Aug 26, 2026SaveLearn
Beyond Strong Subadditivity: Holographic Entropy Inequalities Along Renormalization Group FlowsStrong subadditivity (SSA) on a common light cone gives the Casini-Huerta entropic proof of the three-dimensional F-theorem. We ask whether holographic entropy inequalities beyond SSA similarly…Ning Bao, Christian Ferko·Aug 26, 2026SaveLearn
Single-Minus Graviton Amplitudes from Matrix TheoryThe n-point single-minus graviton amplitudes are nonzero in a special kinematic region that preserves some supersymmetry when embedded in supergravity. We compute these amplitudes within the BFSS…Alfredo Guevara, Alexandru Lupsasca, Juan Maldacena et al.·Aug 25, 2026SaveLearn
Chaos in Yang-MillsWe study the dynamics of pure-gauge SU(N) through the time evolution of a spatial Wilson loop. We compute its out-of-time-order correlator at weak 't Hooft coupling and large N, and propose a…Barel Skuratovsky·Aug 25, 2026SaveLearn
Exact All-Level Positivity of the Bosonic Veneziano AmplitudeTree-level partial-wave unitarity of the open bosonic Veneziano amplitude follows indirectly from the no-ghost theorem, but a direct proof from the beta function has been missing at the critical…Qi Chen, Yuan Yin·Aug 25, 2026SaveLearn
Tropical Open Strings in a Kalb-Ramond BackgroundWe study tropical open strings arising from the analytically continued action of tropological sigma models in the presence of a constant Kalb-Ramond background. We show that the background field…Sarthak Duary, Vi Hong, Sourav Maji·Aug 25, 2026SaveLearn
Remarks on Vafa-Witten theory, or how to sit on a wallWe prove three results about refined SU(N) VW invariants on Hirzebruch surfaces. First, we crucially simplify the modular anomaly equation satisfied by the generating series of these invariants by…Sergei Alexandrov, Aradhita Chattopadhyaya·Aug 25, 2026SaveLearn
Equivariant Localization for N=2 Theories with HypermultipletsEquivariant localization in the Ω-background is a powerful technique for the evaluation of the partition function of N=2 supersymmetric field theory on a toric four-manifold. For the…Matthias Dennemann, Jan Manschot·Aug 25, 2026SaveLearn
CFT3 Realizations and Celestial Representation Theory of the LΛw1+∞ AlgebraWe study CFT3 realizations and celestial representations of the LΛw1+∞ algebra. Free scalar and Dirac theories yield the same one-particle light-ray action. This action…Bin Zhu·Aug 25, 2026SaveLearn