Controlling interactions and 1D spin motion in quantum gas

Datum

22.06.2011

Zeit

16:30 - 18:00

Sprecher

Shannon Whitlock

Zugehörigkeit

Uni Heidelberg

Sprache

en

Hauptthema

Physik

Andere Themen

Physik

Host

seminar Quantum Dynamics

Beschreibung

Experiments on ultracold gases offer unparalleled opportunities to explore quantum many-body physics, with excellent control over key parameters including temperature, density, interactions and even dimensionality. In some systems, atomic interactions can be adjusted by means of magnetic Feshbach resonances, which have played a crucial role in realizing new many-body phenomena. However, suitable Feshbach resonances are not always available, and they offer limited freedom since the magnetic field strength is the only control parameter. Here we show a new way to tune interactions in one-dimensional quantum gases using state-dependent dressed potentials, enabling control over non-equilibrium spin motion in a two-component gas of 87Rb. I will discuss our future plans to make use of laser excited Rybderg atoms for controlling new and novel interactions in low-dimensional quantum gases.

Letztmalig verändert: 22.06.2011, 09:36:17