Freiburg 2019 – wissenschaftliches Programm

Sitzungen | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

FM: Fall Meeting

FM 17: Quantum Computation: Simulation I

FM 17.4: Talk

Montag, 23. September 2019, 17:15–17:30, 1010

Simulating long-range interacting systems with cold atoms in resonators — •Simon B. Jäger, Luigi Giannelli, Francesco Rosati, and Giovanna Morigi — Theoretische Physik, Universität des Saarlandes, D-66123 Saarbrücken, Germany

Dilute atomic gases in optical cavities are versatile platforms to simulate the statistical mechanics of long-range interacting systems. The long-range potential shares the same non-additivity of gravitational and Coulomb forces and here emerges from multiply-scattered cavity photons. In addition, photon losses and retardation effects give rise to long-range dissipative forces, which are expected to play a peculiar role in the approach to equilibrium. We analyze the stationary phases of cold atoms in optical cavities and their relaxation dynamics towards steady state. We focus in particular on the dynamics following quenches across different stationary phases and investigate the onset and stability of metastable states in the regime in which quantum fluctuations are a small perturbation to the dynamics. Our analysis shows that cold atoms in resonators can provide a promising setup to verify in a laboratory hypothesis developed for the statistical mechanics of cosmic structures.