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Emergent Self-Similar Quantum Revivals in Spiral Drives

Date: 2026-07-13
Time: 10:00
Venue: M830
Speaker: 周鑫池, 马克斯·普朗克复杂系统物理研究所

Abstract: 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.

Reference: XCZ et al., arXiv:2606.05288

About the speaker: Xin-Chi Zhou (周鑫池) received his B.Sc. from the Southern University of Science and Technology in 2019 and his Ph.D. from Peking University in 2025. He is currently a postdoctoral researcher at the Max Planck Institute for the Physics of Complex Systems. His research focuses on quantum simulation, quasicrystals, and nonequilibrium quantum matter.

Inviter: 孙孝奇 xqsun@iphy.ac.cn