The Observer Paradigm in Semiclassical Gravity: A Postmodern PerspectiveRecent advances in semiclassical gravity, both in our understanding of the gravitational path integral and the algebraic structure of a gravitating subregion, rely on the presence of an observer to…Sean McBride·Mar 31, 2026SaveLearn
How to (Non-)Perturb a BPS Black HoleWe relate the structure of non-perturbative corrections to BPS black hole observables in flat-spacetime theories with certain properties of probe charged particles in the near-horizon geometry.…Alberto Castellano, Matteo Zatti·Mar 31, 2026SaveLearn
An All-Loop Amplituhedron in Two DimensionsWe define and study a positive geometry Δ(L) which serves as a natural generalization of loop amplituhedra to two-dimensional Minkowski space R1,1. The geometry is formulated in…Jonah Stalknecht·Mar 31, 2026SaveLearn
Microscopic Origin of Page CurveApplications of the Ryu-Takayanagi formula to evaporating black holes are known to reproduce the Page curve, although leaving open the microscopic origin of the necessary black hole degrees of…Artem Averin·Mar 31, 2026SaveLearn
Macdonald Index from VOA and Graded UnitarityThe SCFT/VOA correspondence provides a powerful framework for studying 4d N=2 superconformal field theories (SCFTs) through the mathematical machinery of 2d vertex operator algebras…Hongliang Jiang·Mar 31, 2026SaveLearn
Exponential Periods for Integrals in PhysicsThe study of Feynman integrals through the lens of intersection theory offers a unifying framework for their analysis, capturing both the linear and quadratic relations that arise among integrals. In…Anthony Massidda·Mar 31, 2026SaveLearn
5d Higgs branch and instanton magnetizationHiggs branches of 5d Sp(k) theories with Nf flavours, whether at weak or strong coupling, are described by a pair of instantons transforming as pure spinors of SO(2Nf). The Poisson structure…Amihay Hanany, Alessandro Tomasiello, Elias Van den Driessche·Mar 31, 2026SaveLearn
Density matrix of de Sitter JT gravityJackiw-Teitelboim (JT) gravity in two-dimensional de Sitter space is an intriguing toy model for a quantum mechanical description of an inflationary phase of the universe, including initial…Wilfried Buchmuller, Alexander Westphal·Mar 31, 2026SaveLearn
Spontaneous BRST symmetry breaking in infrared QCDWe present a novel proposal for the effective Lagrangian of the low-energy Yang--Mills quantum field theory. The proposed effective Lagrangian exhibits the spontaneous BRST symmetry breaking. We…Angelo Raffaele Fazio, Adam Smetana·Mar 31, 2026SaveLearn
Analyzing Uniform WKB for Deformed QM Or How Not to Quantize the SW CurveWe uncover an inconsistency in the uniform WKB quantization of deformed quantum mechanics.Dharmesh Jain·Mar 31, 2026SaveLearn
What U Can Do: New Solutions and New Challenges Beyond Leading OrderString theories naturally exhibit dualities that lead to hidden symmetries in the low-energy effective description, which have been used to great effect to generate supergravity solutions. We review…Yi Pang, Robert J. Saskowski·Mar 31, 2026SaveLearn
Higher-Point Correlators in N=4 SYM: Generating FunctionsWe construct generating functions of five- and six-point correlators up to two loops at weak 't Hooft coupling in planar N=4 SYM. These generating functions unify the correlators of the lightest…Till Bargheer, Albert Bekov, Carlos Bercini et al.·Mar 31, 2026SaveLearn
Orthogonality of Q-Functions up to Wrapping in Planar N=4 Super Yang-Mills TheoryWe construct orthogonality relations in the Separation of Variables framework for the sl(2) sector of planar N=4 supersymmetric Yang-Mills theory. Specifically, we find simple universal measures that…Till Bargheer, Carlos Bercini, Andrea Cavaglià et al.·Mar 31, 2026SaveLearn
Anomaly-mediated Scalar Gravitational Interactions and the Coupling of Conformal SectorsWe investigate the anomaly-induced activation of a gauge-invariant scalar degree of freedom in General Relativity, the conformalon mode, directly at the level of \(22\) scattering amplitudes. The…Claudio Corianò, Stefano Lionetti, Dario Melle et al.·Mar 30, 2026SaveLearn
A Twisted Origin for Magnetic Carroll SupersymmetryMagnetic Carrollian theories provide a natural setting for field theories with nontrivial spatial structure in the Carroll limit and are therefore natural candidates for flat-space holographic duals.…Ilayda Bulunur, Osman Ergec, Oguzhan Kasikci et al.·Mar 30, 2026SaveLearn
Note About Relational Mechanics of General Forms of Particle ActionsIn this short note we show that any action for N interacting particles can be made invariant under gauged Galilean transformations. While resulting Lagrangian is generally very complicated its…J. Kluson·Mar 30, 2026SaveLearn
Maximally heavy dynamics in the causal diamondCorrelation functions of CFT operators with infinite scaling dimension are rich, multifaceted objects that describe physics ranging across classical holography, black hole dynamics, and flat-space…David Poland, Gordon Rogelberg·Mar 30, 2026SaveLearn
Scattering in strong field QED in a non-null backgroundWe examine scattering amplitudes for an arbitrary number of photons in a class of non-null background electromagnetic fields, studying tree-level and one-loop amplitudes in scalar and spinor…Patrick Copinger, James P. Edwards, Karthik Rajeev·Mar 30, 2026SaveLearn
3D gravity and double copy theoryWe introduce a novel reformulation of three-dimensional gravity in terms of divergenceless vector frames, inspired by the double copy for Chern-Simons theory. This formulation is on-shell equivalent…Maor Ben-Shahar, Francesco Bonechi, Maxim Zabzine·Mar 30, 2026SaveLearn
Symmetry Resolved Entanglement Entropy: Equipartition under Driven and Non-unitary Evolution in a Compact Boson CFTWe study the evolution of symmetry-resolved entanglement entropy in bulk-driven Floquet conformal field theories (CFTs). Focusing on the two-dimensional free compact boson CFT, we analyze how…Filiberto Ares, Jayashish Das, Arnab Kundu·Mar 30, 2026SaveLearn
Which Functions Admit a Positive Geometry? From Branch Cuts to String AmplitudesPositive geometry provides a geometric framework where physical observables are encoded as canonical forms associated to regions of kinematic space. In this paper we consider a generalisation to an…Hyungrok Kim, Jonah Stalknecht·Mar 30, 2026SaveLearn
Lecture Notes on Positivity Properties of Scattering AmplitudesWe review completely monotone (CM) and Stieltjes functions, which are classes of functions obeying an infinite hierarchy of positivity constraints. While these are classical concepts in analysis,…Prashanth Raman·Mar 30, 2026SaveLearn
Physics as Code: From Scans to Theorems with ITP APIs in SU(5) Model BuildingA recurring challenge in theoretical physics is to make reliable global statements about bounded but combinatorially large model spaces. Exhaustive scans quickly become opaque or impractical, while…Sven Krippendorf, Joseph Tooby-Smith·Mar 30, 2026SaveLearn
Oscillons in the broken vacuum and global vortex annihilationIn contrast to the complex ϕ4 model, vortex-antivortex collisions in the complex ϕ6 theory reveal a resonant structure due to the existence of a remarkably stable, long-lived, large amplitude…D. Canillas Martínez, A. González-Parra, D. Miguélez-Caballero et al.·Mar 30, 2026SaveLearn
On the trivalent junction of three non-tachyonic heterotic string theoriesRecently, Altavista, Anastasi, Angius and Uranga discussed a method to construct junctions and bouquets of different perturbative string theories. Following this analysis, we here argue that three…Yuji Tachikawa·Mar 30, 2026SaveLearn