Tunable Chaos in the Finite Mean SYK Model (opens in new tab)

The complex Sachdev-Ye-Kitaev (SYK) model, featuring fermions with all-to-all interactions, serves as a dual paradigm for understanding non-Fermi liquid behavior and the holographic nature of charged black holes. Two defining characteristics of the standard SYK model are its maximal chaos (Lyapunov exponent $\lambda_{\mathrm{L}}=2\pi T$ at temperature $T$), and its finite zero-temperature residual entropy. While previous studies have largely f...