Thermal modifications of mesons and energy-energy correlators from real-time simulations of a U(1) lattice gauge theory

2025/07/22 by João Barata, Barata, João, David Frenklakh +3 · 4 citations
Physics and Astronomy · #FOS: Physical sciences #Factorization #Gauge (firearms) #Gauge theory #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Lattice (music) #Lattice gauge theory #Meson #Particle physics theoretical and experimental studies #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quantum Physics (quant-ph) #Scalar (mathematics) #Thermal

paper · pdf · doi:10.48550/arxiv.2507.16890

published in arXiv (Cornell University) (Cornell University)

openalex publication_date 2025/07/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/09

Abstract

We investigate thermal properties of a U(1) lattice gauge theory in 1+1-dimensions through real-time simulations. We extract the spectral functions directly coupling to the pseudoscalar and scalar mesons, demonstrating the thermal modifications of these states with increasing temperatures. Introducing the notion of energy-flow operators, we quantify the temporal build-up of correlations in the energy flows across the lattice. We demonstrate that energy-energy correlators fail to factorize to products of energy flows, both in the vacuum and at nonzero-temperature, indicating the presence of non-trivial correlations in the quantum states. Our results constitute a first real-time ab-initio study of bound state thermal broadening and finite temperature energy-flow correlations in a gauge theory, providing a benchmark for future studies of hadronic matter under extreme conditions.

Citations

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• Quarkonium Spectroscopy in the Quark-Gluon Plasma
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• Observation of string breaking on a (2 + 1)D Rydberg quantum simulator
• Probing Celestial Energy and Charge Correlations through Real-Time Quantum Simulations: Insights from the Schwinger Model
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• Probing the equilibration of the QCD matter created in heavy-ion collisions with dileptons
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• Pre-equilibrium photons from the early stages of heavy-ion collisions
• Calculating composite-particle spectra in Hamiltonian formalism and demonstration in 2-flavor QED_1+1d
• Discrete Chiral Symmetry and Mass Shift in Lattice Hamiltonian Approach to Schwinger Model
• Relativistic Fluid Dynamics In and Out of Equilibrium -- Ten Years of\n Progress in Theory and Numerical Simulations of Nuclear Collisions
• The temperature dependence of the chiral condensate in the Schwinger model with Matrix Product States
• Conformal collider physics: Energy and charge correlations
• Matrix Product Density Operators: Simulation of Finite-Temperature and Dissipative Systems
• Evidence for a New State of Matter: An Assessment of the Results from the CERN Lead Beam Programme
• Hamiltonian formulation of Wilson's lattice gauge theories

Cited by

• Out-of-Equilibrium Dynamics in a U(1) Lattice Gauge Theory via Local Information Flows: Scattering and String Breaking
• Collective motion in the massive Schwinger model via Tensor Network
• Quantum simulating multi-particle processes in high energy nuclear physics: dijet production and color (de)coherence
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