Xin-Chi Zhou

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Generic driven many-body systems are expected to heat toward featureless infinite-temperature states. In this talk, I will introduce a distinct form of non-heating nonequilibrium temporal order: self-similar quantum revivals generated by quasiperiodic spiral kicks. In this dynamics, the system recurrently returns close to its initial state at a hierarchically nested sequence of Fibonacci-related times, accompanied by self-similar structures in fidelity and entanglement growth. I will explain the underlying mechanism in terms of momentum-resolved SU(2) cocycles and an emergent dynamical attractor, which coherently synchronizes different modes at Fibonacci times. I will also discuss how this framework enables tunable entanglement growth and how the revivals persist as a long-lived prethermal phenomenon beyond integrability.

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Max Planck Institute for the Physics of Complex Systems
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Contact: Zemin Huang