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- W4315704976 abstract "In this work, we study the information scrambling and the entanglement dynamics in the complex Brownian Sachdev-Ye-Kitaev (cBSYK) models, focusing on their dependence on the charge density $n$. We first derive the effective theory for scramblons in a single cBSYK model, which gives closed-form expressions for the late-time OTOC and operator size. In particular, the result for OTOC is consistent with numerical observations in [1]. We then study the entanglement dynamics in cBSYK chains. We derive the density dependence of the entanglement velocity for both R'enyi entropies and the Von Neumann entropy, with a comparison to the butterfly velocity. We further consider adding repeated measurements and derive the effective theory of the measurement induced transition which shows $U(2)_Lotimes U(2)_R$ symmetry for non-interacting models." @default.
- W4315704976 created "2023-01-12" @default.
- W4315704976 creator A5066863522 @default.
- W4315704976 date "2023-01-09" @default.
- W4315704976 modified "2023-10-14" @default.
- W4315704976 title "Information Scrambling and Entanglement Dynamics of Complex Brownian Sachdev-Ye-Kitaev Models" @default.
- W4315704976 doi "https://doi.org/10.48550/arxiv.2301.03189" @default.
- W4315704976 hasPublicationYear "2023" @default.
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