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Universality and its limits in non-Hermitian many-body quantum chaos using the Sachdev-Ye-Kitaev model
Antonio M. García-García, Lucas Sá, Jacobus J. M. Verbaarschot
Spectral rigidity in Hermitian quantum chaotic systems signals the presence of dynamical universal features at timescales that can be much shorter than the Heisenberg time. We stud…
Keldysh Wormholes and Anomalous Relaxation in the Dissipative Sachdev-Ye-Kitaev Model
Antonio M. García-García, Lucas Sá, Jacobus J. M. Verbaarschot +1
We study the out-of-equilibrium dynamics of a Sachdev-Ye-Kitaev (SYK) model, fermions with a -body interaction of infinite range, coupled to a Markovian environment. Close t…
Replica Symmetry Breaking in Random Non-Hermitian Systems
Antonio M. García-García, Yiyang Jia, Dario Rosa +1
Recent studies have revealed intriguing similarities between the contribution of wormholes to the gravitational path integral and the phenomenon of replica symmetry breaking observ…
Replica Symmetry Breaking for the Integrable Two-Site Sachdev-Ye-Kitaev Model
Yiyang Jia, Dario Rosa, Jacobus J. M. Verbaarschot
We analyze a two-body nonhermitian two-site Sachdev-Ye-Kitaev model with the couplings of one site complex conjugated to the other site. This model, with no explicit coupling betwe…