Relaxation dynamics of integrable field theories after a global quantum quench
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866910898657951744 |
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| author | Di Salvo, Emanuele Schuricht, Dirk |
| author_facet | Di Salvo, Emanuele Schuricht, Dirk |
| contents | We apply the linked cluster expansion as well as the quench action approach to study the time evolution of one-point functions after a quantum quench in integrable field theories. We argue that the relaxation towards the stationary value fundamentally differs depending on the locality properties of the considered observable: while for local operators both exponential and power-law decaying terms are present in the dynamics, for semi-local operators the latter are absent. We explicitly confirm this for the Ising field theory, the sinh-Gordon model, and the repulsive sine-Gordon model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_00682 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Relaxation dynamics of integrable field theories after a global quantum quench Di Salvo, Emanuele Schuricht, Dirk Strongly Correlated Electrons High Energy Physics - Theory We apply the linked cluster expansion as well as the quench action approach to study the time evolution of one-point functions after a quantum quench in integrable field theories. We argue that the relaxation towards the stationary value fundamentally differs depending on the locality properties of the considered observable: while for local operators both exponential and power-law decaying terms are present in the dynamics, for semi-local operators the latter are absent. We explicitly confirm this for the Ising field theory, the sinh-Gordon model, and the repulsive sine-Gordon model. |
| title | Relaxation dynamics of integrable field theories after a global quantum quench |
| topic | Strongly Correlated Electrons High Energy Physics - Theory |
| url | https://arxiv.org/abs/2410.00682 |