Disorder-enhanced phase coherence in trapped bosons on optical lattices

Details Disorder-enhanced phase coherence in trapped bosons on optical lattices Disorder-enhanced phase coherence in trapped bosons on optical lattices

2006-02-21

arxiv.org/abs/cond-mat/0602504v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1088/1367-2630/9/4/103

The consequences of disorder on interacting bosons trapped in optical lattices are investigated by quantum Monte Carlo simulations. At small to moderate strengths of potential disorder a unique effect is observed: if there is a Mott plateau at the center of the trap in the clean limit, phase coherence {\it increases} as a result of disorder. The localization effects due to correlation and disorder compete against each other, resulting in a partial delocalization of the particles in the Mott region, which in turn leads to increased phase coherence. In the absence of a Mott plateau, this effect is absent. A detailed analysis of the uniform system without a trap shows that the disordered states participate in a Bose glass phase.

Affiliated with

Also associated with

No associations

Rating

Disorder-enhanced phase coherence in trapped bosons on 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 Disorder-enhanced phase coherence in trapped bosons on optical lattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disorder-enhanced phase coherence in trapped bosons on optical lattices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-88680