High Energy & Particle · Physics & Astronomy
High Energy Physics - Theory
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196 papers, from 16 September 2026 to 5 November 2026: 196 arXiv preprints.
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Newest papers
Extensions of the Haldane gap proof: higher dimensions, near degeneracy, fermions and tensor-network states
A recent remarkable paper by OpenAI showed that the spin-one Heisenberg chain with periodic boundary conditions has a spectral gap in the thermodynamic limit.Demystifying Graviton Detection
Detecting single gravitons is possible through the extraction of discrete energy quanta from passing gravitational waves.Monopoles, Scattering and Generalized Symmetries on a Quantum Computer
Quantum computers have advanced to the stage that interesting many-body quantum phenomena can be observed.Static and dynamical Casimir effects in a wedge within the worldline formulation
We study a real massless scalar field in $d+1$ dimensions confined to a wedge of opening angle $α$, in the presence of a semitransparent circular arc that may oscillate radially.Quantum Computing for Entanglement Asymmetry and the Quantum Mpemba Effect in Field Theory
We construct a quantum measurement protocol for estimating the Rényi entanglement asymmetry, which quantifies symmetry breaking at the level of a subsystem and provides a probe of the quantum Mpemba…Quasi-Normal Modes and thermalization in integrable Quantum Field Theories from the Thermodynamic Bethe Ansatz
We propose a Thermodynamic Bethe Ansatz (TBA) approach for describing thermalization in integrable quantum field theories.Non-compact Kogut-Susskind gauge theories: 1D lattice models with exact ${\rm SL}(2,\mathbb{R})$ gauge invariance
The Kogut-Susskind (KS) formulation of gauge theories constructs quantum many-body Hamiltonians with gauge invariance under a compact Lie group exactly implemented on a spatial lattice.Entanglement Entropy in Non Relativistic Collisions
We study numerically the build-up of entanglement entropy between two colliding, non relativistic particles, that are driven by the plain Schrödinger equation containing local, finite range…Multipartite Entanglement, TQFT Partition Functions and PL Bordism
In a previous work we conjectured that the multi-invariants of the ground state of a gapped $(d-1)+1$-dimensional system, labeled by bipartite $(d+1)$-edge-colored graphs encoding closed oriented…On Entanglement Dynamics in Holographic Theories
Entanglement entropy (EE) is central to modern theoretical physics, yet its calculation in interacting theories with nontrivial time dependence remains challenging.Constraint Variance Identity and the Matter-Geometry Fluctuation Relation
The quantum Hamiltonian constraint vanishes for physical states.Unruh-DeWitt detectors in a delocalized massive shell
We construct a model for the response of a detector to vacuum fluctuations inside a massive hollow shell in a superposition of positions.Improving Gravitationally Induced Entanglement in Interferometric Configurations
Proposals to detect gravitationally induced entanglement between massive particles offer a promising pathway toward probing the quantum nature of gravity.Negative Junction Logarithms in Scalar Multipartite Entanglement
A three-region junction in a free real relativistic scalar vacuum in $2+1$ dimensions yields a strictly negative logarithmic contribution to genuine tripartite Rényi multi-entropy for every integer…On the universality of entanglement entropy in quantum field theory
The standard definition of entanglement entropy in quantum field theory requires regularizing the entangling surface and factorizing the Hilbert space, which in turn involves a choice of boundary…Motional Decoherence of the internal state of an atom by vacuum and thermal fluctuations of a quantum field: Necessity of a fully relativistic treatment
We consider a massive object, such as a neutral atom or an Unruh-DeWitt detector, moving at constant speed in a quantum field and investigate how motion affects the quantum coherence of its internal…An Excursion into Grassmannian Spectra
We revisit the classical spectral problem for the Laplace-Beltrami and Laplace-Bochner operators on complex Grassmannians.Closed- and open-system characterization of the Yukawa-SYK model in real time
Strongly correlated matter without quasiparticles is central to many-body physics, quantum chaos, and quantum gravity, motivating a considerable effort toward its realization in tabletop experiments.Spectral measures and sharpness of quantum speed limits
Quantum speed limits bound the time required for a given state to evolve into a given subspace of the Hilbert space under specific energy constraints.Toward a Quantum Information Foundation for Neutron Scattering
Neutron scattering is a central probe of quantum materials, yet what quantum information can, in principle, be extracted from a scattering experiment remains unclear.