Thermalization from quantum entanglement: jet simulations in the massive Schwinger model
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911010840903680 |
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| author | Florio, Adrien Frenklakh, David Grieninger, Sebastian Kharzeev, Dmitri E. Palermo, Andrea Shi, Shuzhe |
| author_facet | Florio, Adrien Frenklakh, David Grieninger, Sebastian Kharzeev, Dmitri E. Palermo, Andrea Shi, Shuzhe |
| contents | We investigate the emergence of thermalization in a quantum field-theoretic model mimicking the production of jets in QCD -- the massive Schwinger model coupled to external sources. Specifically, we compute the expectation values of local operators as functions of time and compare them to their thermal counterparts, quantify the overlap between the evolving density matrix and the thermal one, and compare the dynamics of the energy-momentum tensor to predictions from relativistic hydrodynamics. Through these studies, we find that the system approaches thermalization at late times and elucidate the mechanisms by which quantum entanglement drives thermalization in closed field-theoretic systems. Our results show how thermodynamic behavior emerges in real time from unitary quantum dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_14983 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Thermalization from quantum entanglement: jet simulations in the massive Schwinger model Florio, Adrien Frenklakh, David Grieninger, Sebastian Kharzeev, Dmitri E. Palermo, Andrea Shi, Shuzhe High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory Quantum Physics We investigate the emergence of thermalization in a quantum field-theoretic model mimicking the production of jets in QCD -- the massive Schwinger model coupled to external sources. Specifically, we compute the expectation values of local operators as functions of time and compare them to their thermal counterparts, quantify the overlap between the evolving density matrix and the thermal one, and compare the dynamics of the energy-momentum tensor to predictions from relativistic hydrodynamics. Through these studies, we find that the system approaches thermalization at late times and elucidate the mechanisms by which quantum entanglement drives thermalization in closed field-theoretic systems. Our results show how thermodynamic behavior emerges in real time from unitary quantum dynamics. |
| title | Thermalization from quantum entanglement: jet simulations in the massive Schwinger model |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory Quantum Physics |
| url | https://arxiv.org/abs/2506.14983 |