Work

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

Year: 2025

Type: article

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 buildup 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 nontrivial correlations in the quantum states. Our results constitute a first real-time 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.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/x3sn-vq11

Authors: João Barata, David Frenklakh, Swagato Mukherjee

Institutions: European Organization for Nuclear Research, Brookhaven National Laboratory

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: U.S. Department of Energy, Office of Science, Nuclear Physics, Laboratory Directed Research and Development