Floquet engineering with interacting ultracold atoms

Datum

18.01.2018

Zeit

14:00 - 15:00

Sprecher

Monika Aidelsburger

Zugehörigkeit

LMU

Sprache

en

Hauptthema

Physik

Andere Themen

Physik

Beschreibung

Floquet engineering is an important tool for the engineering of novel band structures with interesting properties that go beyond those offered by static systems. Recently, Floquet systems have enabled the generation of Bloch bands with non-trivial topological properties, such as the Hofstadter and Haldane model. This led to the observation of chiral Meissner currents and the first Chern-number measurement with charge-neutral atoms. Besides this success studies of many-body phases in driven systems remain experimentally challenging in particular due to the interplay between periodic driving and interactions. In a driven system energy is not conserved which can lead to severe heating. In order to find stable parameter regimes for the generation of driven many-body phases it is essential to develop a deeper understanding of the underlying processes. In this talk, I briefly review recent experimental advances in the generation of topological band structures in the non-interacting regime using Floquet engineering and present first studies of interacting atoms in driven 1D lattices.

Letztmalig verändert: 18.01.2018, 09:03:39