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TT: Fachverband Tiefe Temperaturen

TT 63: Quantum Dynamics and Many-body Systems – Poster (joint session DY/TT)

TT 63.5: Poster

Mittwoch, 11. März 2026, 15:00–18:00, P5

Adaptive Fermion Circuits with chiral transport — •Markus Siegl and Michael Buchhold — Department of Theoretical Physics, Universität Innsbruck, Austria

Nonequilibrium quantum transport, where coherent many-body dynamics coexist with directional motion remains a central challenge in modern quantum physics. This project investigates transport phenomena in two coupled fermionic chains designed to break chiral symmetry. Using fermionic adaptive circuits and measure-ment-feedback protocols, we aim to control nonequilibrium dynamics and induce directional motion in an other-wise symmetric quantum system. By linking classical universality, quantum many-body effects, and information transport, the research seeks to uncover new mechanisms for controlled, symmetry-broken quantum transport, establishing a model system for genuinely nonequilibrium quantum matter.

Keywords: Adaptive quantum circuits; Monitored fermions; Nonequilibrium dynamics; KPZ transport; Chiral symmetry