The paper derives an equilibration bound for a truncated out-of-time-order correlator in the extended phase of any quadratic fermionic model, and numerically maps wavefront and momentum-space regimes in the Aubry-André model.
(5), cannot be re-expressed in a form equivalent to the ’Gaussian’ form characterized by two spatial and disorder de- pendent functions a(x,λ ), b(x,λ ) proposed in Ref
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Out of Time Order Correlations in the Quasi-Periodic Aubry-Andr\'e model
The paper derives an equilibration bound for a truncated out-of-time-order correlator in the extended phase of any quadratic fermionic model, and numerically maps wavefront and momentum-space regimes in the Aubry-André model.