QI/AMO Seminar: "Quantum simulation of extreme non-equilibrium phenomena"

Speaker David Weld, University of California at Santa Barbara
Date: 11/15/2017
Time: 1 p.m.

280 MRL

Event Contact: Betsy Greifenkamp

Department of Physics

Event Type: Seminar/Symposium

Ultracold atomic physics experiments offer a nearly ideal context for the investigation of quantum systems far from equilibrium.  I will present results from two experiments investigating driven quantum gases.  The first is an exploration of a Floquet phase diagram which aims to realize a transition to a nontrivial Floquet phase of matter in a strongly amplitude-modulated optical lattice.  The new phase can be understood as a many-body quantum-mechanical analogue of an inverted Kapitza pendulum. The second experiment uses trapped degenerate strontium as a quantum emulator of ultrafast atom-light interactions. Here the low energy scales of cold atom experiments give rise to an effective temporal magnification factor of up to twelve orders of magnitude, enabling the study of nonequilibrium quantum dynamics relevant to attosecond-scale electronic phenomena.

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