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High Energy Physics - Theory papers — page 157

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Superadditivity of Krylov Complexity for Tensor Products
We study Krylov complexity for quantum systems whose Hamiltonians factorise as tensor products. We prove that complexity is superadditive under tensor products, C12 C1+C2, and identify a…
Jeff Murugan, Hendrik J. R. van ZylJan 13, 2026
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Path-integral approach to Casimir effect with infinitely thin plates
When studying the Casimir effect in a quantum field theory setting, one can impose the boundary conditions by adding appropriate Dirac-delta functions to the path integral. In this paper, the limits…
David VercauterenJan 13, 2026
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Maximal trombone supergravity from wrapped M5-branes
A new family of maximal supergravities in four dimensions, involving gaugings of the trombone scaling symmetry, has been recently introduced. Using exceptional generalised geometry, we show some…
Martin Pico, Oscar VarelaJan 12, 2026
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Black holes and causal nonlinear electrodynamics
For generic theories of nonlinear electrodynamics (NLED) we investigate the implications of (a)causality on spherically-symmetric solutions of the Einstein-NLED equations that are asymptotic to a…
Jorge G. Russo, Paul K. TownsendJan 12, 2026
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Spacetime Quasicrystals
Self-similar quasicrystals (like the famous Penrose and Ammann-Beenker tilings) are exceptional geometric structures in which long-range order, quasiperiodicity, non-crystallographic orientational…
Latham Boyle, Sotirios MygdalasJan 12, 2026
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Boundary flow and geometric realization in holographic T T-deformed BCFT
We study the T T deformation of boundary conformal field theories (BCFTs) from an intrinsic field-theoretic perspective. Formulating the deformation as a modification of the asymptotic…
Feiyu DengJan 12, 2026
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Modified gravity at large scales on quantum spacetime in the IKKT model
The gravitational dynamics of 3+1 dimensional covariant quantum spacetime in the IKKT or IIB matrix model is studied at one loop, combining the Yang-Mills-type matrix action with the induced…
Harold C. SteinackerJan 12, 2026
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A Scattering Transform for Noncommutative Instantons
We give a detailed and mathematically rigorous analysis of the path integrals of chiral fermions supported on holomorphic curves on T* C in a general noncommutative instanton background.…
Spencer TamagniJan 12, 2026
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Subregion algebras in classical and quantum gravity
We study the kinematics and dynamics of subregion algebras in classical and perturbative quantum gravity associated with portions of null surfaces such as event horizons and finite causal diamonds.…
Venkatesa Chandrasekaran, Éanna É. FlanaganJan 12, 2026
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Unimodular time in JT gravity: a holographic clock
How is a ''bulk clock'' encoded holographically? We address this in Jackiw-Teitelboim (JT) gravity, where a natural physical clock emerges by promoting the vacuum energy to a…
Altay Etkin, Farbod-Sayyed RassouliJan 12, 2026
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Generalized Entropy is von Neumann Entropy II: The complete symmetry group and edge modes
We consider the algebra of observables of perturbative quantum gravity in the exterior of a stationary black hole or the static patch of de Sitter spacetime. It was previously argued that the…
Marc S. Klinger, Jonah Kudler-Flam, Gautam SatishchandranJan 12, 2026
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Refined Invariants and Quantum Curves from Supersymmetric Localization
We study an Aganagic-Vafa brane supported on a special Lagrangian submanifold L in a non-compact toric Calabi-Yau threefold X. From the perspective of geometric engineering,…
Sibasish Banerjee, Nafiz Ishtiaque, Saebyeok JeongJan 12, 2026
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Obstructions to Unitary Hamiltonians in Non-Unitary String-Net Models
The Levin-Wen string-net formalism provides a canonical mapping from spherical fusion categories to local Hamiltonians defining Topological Quantum Field Theories (TQFTs). While the topological…
Hanshi YangJan 11, 2026
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Classical Unattainability of Extremality in non-BPS D-brane Systems
For the worldline theory of an extremal black hole, extremality amounts to vanishing ground state energy. In light of recent gravity results one would expect much like the ground state degeneracy…
Pranav Kumar, Swapnamay MondalJan 11, 2026
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Application of analytic functionals to mean field theory and Wilson-Fisher fixed point
We consider application of the analytic functional approach to the conformal field theories associated with mean field theory and Wilson-Fisher fixed point. We study the constraints imposed by the…
Bhaskar Jyoti Khanikar, Subir MukhopadhyayJan 11, 2026
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Quantum-Corrected Evaporation and Absorption Cross-Section of Near-Extremal Rotating Black Holes
We revisit the Hawking evaporation history of low-temperature rotating black holes by taking into consideration the strong quantum fluctuations known to be present in the near-horizon,…
Shu Luo, Leopoldo A. Pando ZayasJan 10, 2026
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Lecture notes on strings in AdS3 from the worldsheet and the AdS3/CFT2 duality
These lecture notes, based on the course given at IPhT in November/December 2023, provide a pedagogical introduction to the study of strings in AdS3 backgrounds supported by NSNS flux from the…
Nicolas KovenskyJan 10, 2026
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Krylov complexity for η deformed superstring backgrounds
We compute the holographic Krylov complexity for a class of strongly coupled Quantum Field Theory (QFT) (with broken scale invariance) in a top down approach, where the dual gravitational counterpart…
Dibakar RoychowdhuryJan 10, 2026
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Long-Range Interactions in Celestial CFT
Loop corrections in QED and gravity have recently been conjectured to give rise to an infinite tower of logarithmic soft theorems governing the universal low-energy behavior of photons and gravitons.…
Sangmin Choi, Ameya Kadhe, Andrea PuhmJan 9, 2026
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Causality Criteria for Island Models
Island models offer a compelling resolution of the black hole information paradox, but they also raise persistent questions about causal consistency in effective descriptions. In particular,…
Feiyu DengJan 9, 2026
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String Theory from Infinite Width Neural Networks
We realize bosonic string theory with ensembles of infinite width neural networks. The string tension is tuned by the variance of the output weights. The construction provides a new computation of…
Samuel Frank, James HalversonJan 9, 2026
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T T Deformations through BRST Symmetry
We study the T T deformation using its formulation as a CFT coupled to two-dimensional dynamical gravity. Working within the BRST formalism, we apply the intertwiner construction of…
Elia de Sabbata, Pietro Antonio Grassi, Massimo PorratiJan 9, 2026
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Mimetic Dark Matter from Inflation
We investigate the coupling of mimetic dark matter to the Gauss-Bonnet topological term in addition to the Einstein-Hilbert action. We demonstrate that such interactions can naturally give rise to…
Ali H. Chamseddine, Viatcheslav MukhanovJan 9, 2026
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On Duality Invariant Yang-Mills Theory
We provide an explicit construction of a manifestly duality invariant, interacting deformation of Maxwell theory in four dimensions in terms of mutually local, but interacting 1- and 3-forms.…
Carlo Alberto Cremonini, Erik Hundeshagen, Ivo SachsJan 9, 2026
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The Tμν of the conformal scalars
We construct the unique primary energy-momentum tensor Tμν for the conformal free scalar with scaling dimension Δ=d/2-ζ as a sum of Gegenbauer polynomials. For integer ζ, the sum truncates…
Kit Fraser-Taliente, Ludo Fraser-TalienteJan 8, 2026
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