Regensburg 2022 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 35: Quantum Chaos and Coherent Dynamics

DY 35.3: Vortrag

Mittwoch, 7. September 2022, 16:00–16:15, H20

Eigenstate entanglement in coupled kicked spin chains with chaotic dynamics — •Tabea Herrmann, Maximilian F. I. Kieler, and Arnd Bäcker — TU Dresden, Institut für Theoretische Physik, Dresden, Germany

We study the behaviour of the eigenstate entanglement in two coupled quantum chaotic kicked spin chains in dependence on the coupling strength. It is demonstrated that a random matrix transition ensemble explains the transition from the uncoupled case to strong coupling. Remarkably, the numerical results can be described by an extended perturbation theory which was introduced for the case of two coupled chaotic one-body-systems.