Kilohertz-driven Bose-Einstein condensates in optical lattices

Details Kilohertz-driven Bose-Einstein condensates in optical lattices Kilohertz-driven Bose-Einstein condensates in optical lattices

2012-03-06

arxiv.org/abs/1203.1259v2

Physics

Condensed Matter

Quantum Gases

36 pages, 3 figures, Advance Atomic Molecular Physics in press

Scientific paper

We analyze time-of-flight absorption images obtained with dilute Bose-Einstein con-densates released from shaken optical lattices, both theoretically and experimentally. We argue that weakly interacting, ultracold quantum gases in kilohertz-driven optical potentials constitute equilibrium systems characterized by a steady-state distri-bution of Floquet-state occupation numbers. Our experimental results consistently indicate that a driven ultracold Bose gas tends to occupy a single Floquet state, just as it occupies a single energy eigenstate when there is no forcing. When the driving amplitude is sufficiently high, the Floquet state possessing the lowest mean energy does not necessarily coincide with the Floquet state connected to the ground state of the undriven system. We observe strongly driven Bose gases to condense into the former state under such conditions, thus providing nontrivial examples of dressed matter waves.

Affiliated with

Also associated with

No associations

Rating

Kilohertz-driven Bose-Einstein condensates in optical lattices does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Kilohertz-driven Bose-Einstein condensates in optical lattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kilohertz-driven Bose-Einstein condensates in optical lattices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-537827