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TT: Fachverband Tiefe Temperaturen

TT 99: Quantum Chaos and Coherent Dynamics (joint session DY/TT)

TT 99.6: Vortrag

Freitag, 13. März 2026, 10:45–11:00, HÜL/S186

Semiclassical geometry of entanglement — •Maximilian Kieler and Peter Schlagheck — CESAM research unit, University of Liège, B-4000 Liège, Belgium

We propose a semiclassical perspective on entanglement in the form of a geometric Schmidt decomposition of regular states, e.g., states associated with invariant tori. Utilizing WKB quantization techniques and classical geometry, we derive the Schmidt spectrum and the corresponding Schmidt states. This framework allows for the reduction of the complexity in many-body states by decomposing them into lower-dimensional components.

Keywords: Entanglement; Semiclassics; Integrable systems; WKB quantization