Fractionalized Prethermalization in a Driven Quantum Spin Liquid
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| Acceso en línea: | |
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| _version_ | 1866911913773891584 |
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| author | Jin, Hui-Ke Knolle, Johannes Knap, Michael |
| author_facet | Jin, Hui-Ke Knolle, Johannes Knap, Michael |
| contents | Quantum spin liquids subject to a periodic drive can display fascinating non-equilibrium heating behavior because of their emergent fractionalized quasi-particles. Here, we investigate a driven Kitaev honeycomb model and examine the dynamics of emergent Majorana matter and $Z_2$ flux excitations. We uncover a distinct two-step heating profile $\textrm{--}$ dubbed fractionalized prethermalization $\textrm{--}$ and a quasi-stationary state with vastly different temperatures for the matter and the flux sectors. We argue that this peculiar prethermalization behavior is a consequence of fractionalization. Furthermore, we discuss an experimentally feasible protocol for preparing a zero-flux initial state of the Kiteav honeycomb model with a low energy density, which can be used to observe fractionalized prethermalization in quantum information processing platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2211_10453 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Fractionalized Prethermalization in a Driven Quantum Spin Liquid Jin, Hui-Ke Knolle, Johannes Knap, Michael Strongly Correlated Electrons Quantum Gases Statistical Mechanics Quantum spin liquids subject to a periodic drive can display fascinating non-equilibrium heating behavior because of their emergent fractionalized quasi-particles. Here, we investigate a driven Kitaev honeycomb model and examine the dynamics of emergent Majorana matter and $Z_2$ flux excitations. We uncover a distinct two-step heating profile $\textrm{--}$ dubbed fractionalized prethermalization $\textrm{--}$ and a quasi-stationary state with vastly different temperatures for the matter and the flux sectors. We argue that this peculiar prethermalization behavior is a consequence of fractionalization. Furthermore, we discuss an experimentally feasible protocol for preparing a zero-flux initial state of the Kiteav honeycomb model with a low energy density, which can be used to observe fractionalized prethermalization in quantum information processing platforms. |
| title | Fractionalized Prethermalization in a Driven Quantum Spin Liquid |
| topic | Strongly Correlated Electrons Quantum Gases Statistical Mechanics |
| url | https://arxiv.org/abs/2211.10453 |