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SYEM: Symposium Extreme Matter: From Cold Atoms to the Quark Gluon Plasma

SYEM 1: Symposium Extreme Matter I

SYEM 1.4: Invited Talk

Wednesday, March 25, 2015, 12:30–13:00, C/gHS

Multiflavor phenomena and synthetic gauge fields in strongly interacting quantum gases — •Walter Hofstetter — Goethe-Universität Frankfurt, Germany

Recent years have witnessed dramatic progress in experimental control and refinement of quantum simulations based on ultracold atoms. One major development are synthetic gauge fields, which allow simulating the dynamics of charged particles and topologically nontrivial phases of matter.

Particularly rich physics arises in multiflavor gases, for example earth-alkalines, which allow implementing higher symmetry groups such as SU(N), and where ``color'' superfluids and exotic magnetic states have been predicted.

Spectroscopy and real-time dynamics have revealed novel collective modes, in particular the Higgs-amplitude mode of strongly correlated bosons.

I will discuss recent theoretical insights along these directions, which have been obtained by non-perturbative approaches such as variational wavefunctions and Dynamical Mean-Field Theory.