Finite-size prethermalization at the chaos-to-integrable crossover

URN to cite this document:: urn:nbn:de:bvb:355-epub-547463
DOI to cite this document:: 10.5283/epub.54746

Dieplinger, Johannes

; Bera, Soumya

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Date of publication of this fulltext: 28 Sep 2023 16:34

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Abstract

We investigate the infinite-temperature dynamics of the complex Sachdev-Ye-Kitaev model (SYK4) complemented with a single-particle hopping term (SYK2), leading to the chaos-to-integrable crossover of the many-body eigenstates. Due to the presence of the all-to-all connected SYK2 term, a nonequilibrium prethermal state emerges for a finite time window t_th∝2^(a/λ^2/5) that scales with the relative ...