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000622486 0247_ $$2arXiv$$aarXiv:2501.13675
000622486 0247_ $$2datacite_doi$$a10.3204/PUBDB-2025-00349
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000622486 088__ $$2arXiv$$aarXiv:2501.13675
000622486 1001_ $$0P:(DE-H253)PIP1100309$$aAngelides, Takis$$b0$$eCorresponding author$$udesy
000622486 245__ $$aMeson thermalization with a hot medium in the open Schwinger model
000622486 260__ $$c2025
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000622486 500__ $$a30 pages, 16 figures
000622486 520__ $$aQuantum field theories treated as open quantum systems provide a crucial framework for studying realistic experimental scenarios, such as quarkonia traversing the quark-gluon plasma produced at the Large Hadron Collider. In such cases, capturing the complex thermalization process requires a detailed understanding of how particles evolve and interact with a hot medium. Considering the open lattice Schwinger model and using tensor network algorithms, we investigate the thermalization dynamics of mesonic particles in a hot medium, such as the Schwinger boson or the electric flux string. We simulate systems with up to 100 lattice sites, achieving accurate preservation of the electric field parity symmetry, demonstrating the algorithm's robustness and scalability. Our results reveal that the thermalization time increases with stronger dissipation from the environment, increasing environment temperature, higher background electric field and heavier fermion masses. Further, we study the quantum mutual information between the two halves of the flux string connecting a meson's constituent particles and analyze its relation to relevant dynamical observables.
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000622486 7001_ $$0P:(DE-H253)PIP1104332$$aGuo, Yibin$$b1$$udesy
000622486 7001_ $$0P:(DE-H253)PIP1003636$$aJansen, Karl$$b2$$udesy
000622486 7001_ $$0P:(DE-H253)PIP1086314$$aKühn, Stefan$$b3$$udesy
000622486 7001_ $$0P:(DE-H253)PIP1109968$$aMagnifico, Giuseppe$$b4
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