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Quantum chaos, scrambling and operator growth in $\vphantomoverlineT$$T$ deformed SYK models

, , , and . J. High Energy Phys., 2022 (12): 70 (Dec 13, 2022)
DOI: 10.1007/JHEP12(2022)070

Abstract

In this work, we investigate the quantum chaos in various \$\$ T\backslashoverline\T\ \$\$-deformed SYK models with finite N, including the SYK4, the supersymmetric SYK4, and the SYK2 models. We numerically study the evolution of the spectral form factor (SFF), the out-of-time ordered correlator (OTOC), and the Krylov complexity. We find that the characteristic evolution of the SFF, OTOC and K-complexity of both the SYK4 and SSYK4 models remains unchanged under the deformation, which implies that the properties of quantum chaos is preserved. We also identify a many-body localization behavior in the deformed SYK2 model.

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Quantum chaos, scrambling and operator growth in $$ T\overline{T} $$ deformed SYK models | Journal of High Energy Physics

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