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@ARTICLE{Angelides:622486,
author = {Angelides, Takis and Guo, Yibin and Jansen, Karl and Kühn,
Stefan and Magnifico, Giuseppe},
title = {{M}eson thermalization with a hot medium in the open
{S}chwinger model},
reportid = {PUBDB-2025-00349, DESY-25-015. arXiv:2501.13675},
year = {2025},
note = {30 pages, 16 figures},
abstract = {Quantum field theories treated as open quantum systems
provide a crucial framework for studying realistic
experimental scenarios, such as quarkonia traversing the
quark-gluon plasma produced at the Large Hadron Collider. In
such cases, capturing the complex thermalization process
requires a detailed understanding of how particles evolve
and interact with a hot medium. Considering the open lattice
Schwinger model and using tensor network algorithms, we
investigate the thermalization dynamics of mesonic particles
in a hot medium, such as the Schwinger boson or the electric
flux string. We simulate systems with up to 100 lattice
sites, achieving accurate preservation of the electric field
parity symmetry, demonstrating the algorithm's robustness
and scalability. Our results reveal that the thermalization
time increases with stronger dissipation from the
environment, increasing environment temperature, higher
background electric field and heavier fermion masses.
Further, we study the quantum mutual information between the
two halves of the flux string connecting a meson's
constituent particles and analyze its relation to relevant
dynamical observables.},
cin = {CQTA},
cid = {I:(DE-H253)CQTA-20221102},
pnm = {611 - Fundamental Particles and Forces (POF4-611) / ENGAGE
- Enabling the Next-Generation of Computational Physicists
and Engineers (101034267) / QUEST - QUantum computing for
Excellence in Science and Technology (101087126)},
pid = {G:(DE-HGF)POF4-611 / G:(EU-Grant)101034267 /
G:(EU-Grant)101087126},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)25},
eprint = {2501.13675},
howpublished = {arXiv:2501.13675},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2501.13675;\%\%$},
doi = {10.3204/PUBDB-2025-00349},
url = {https://bib-pubdb1.desy.de/record/622486},
}