Physikkolloquium: Non-equilibrium many-body quantum dynamics

Dez 04
4. Dezember 2019 12:00 Uhr bis 13:00 Uhr
Hörsaal H, Staudtstr. 5, 91058 Erlangen

Non-equilibrium many-body quantum dynamics

Abstract: The assumption that physical systems relax to a stationary state in the long-time limit underpins statistical physics and much of our intuitive understanding of scientific phenomena. For isolated systems, this follows from the eigenstate thermalization hypothesis. When an environment is present the expectation is that all of phase space is explored, eventually leading to stationarity. However, many strongly interacting and correlated classical systems seem to defy this expectation and instead undergo non-stationary complex dynamics for long times.
In my talk, I will identify and discuss simple and generic conditions for dissipation to prevent a quantum many-body system from ever reaching a stationary state. These conditions will allow going beyond dissipative quantum state engineering approaches towards controllable long-time non-stationary dynamics typically associated with macroscopic complex systems. I will provide examples where the resulting coherent and oscillatory evolution might become observable in current experimental setups.

Sprecher: Prof. Dr. Dieter Jaksch, University of Oxford

Kontakt: Prof. M. Eckstein