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Condensed Matter > Strongly Correlated Electrons
Title: Fractionalized Prethermalization in a Driven Quantum Spin Liquid
(Submitted on 18 Nov 2022 (v1), last revised 5 Apr 2024 (this version, v3))
Abstract: 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.
Submission history
From: Hui-Ke Jin [view email][v1] Fri, 18 Nov 2022 19:00:01 GMT (1399kb,D)
[v2] Wed, 20 Mar 2024 08:44:17 GMT (3208kb,D)
[v3] Fri, 5 Apr 2024 09:29:43 GMT (2346kb,D)
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