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Q: Fachverband Quantenoptik und Photonik
Q 61: Quantum Gases: Fermions II
Q 61.9: Talk
Friday, March 4, 2016, 13:00–13:15, e001
Pair Production and String Breaking with Cold Atoms — •Valentin Kasper1, Florian Hebenstreit2, Fred Jendrzejewski3, Markus Oberthaler3, and Juergen Berges1 — 1Institut für Theoretische Physik, Philosophenweg 16, 69120 Heidelberg, Germany — 2Universität Bern, Albert Einstein Center for Fundamental Physics, Sidlerstrasse 5, CH-3012 Bern — 3Kirchhoff-Institut für Physik, Im Neuenheimer Feld 227, 69120 Heidelberg
We consider a system of ultracold atoms in an optical lattice as a quantum simulator for electron-positron pair production and string breaking in quantum electrodynamics (QED). For a setup in one spatial dimension, we investigate the non-equilibrium dynamics of both phenomena. Moreover, we discuss the experimental realization of this model in one dimension. In particular this will allow us to study quantum link models in a yet unexplored parameter regime. The result suggests that depending on the theoretical question at hand, the quantum simulator has to employ coherent samples of a localized bose gas instead of single particles.