Topologically induced avoided band crossing in an optical chequerboard lattice

Details Topologically induced avoided band crossing in an optical chequerboard lattice Topologically induced avoided band crossing in an optical chequerboard lattice

2011-10-17

arxiv.org/abs/1110.3716v2

Physics

Condensed Matter

Quantum Gases

4 figs, Final version to appear in Phys. Rev. Lett

Scientific paper

We report on the condensation of bosons in the 4th band of an optical chequerboard lattice providing a topologically induced avoided band crossing involving the 2nd, 3rd, and 4th Bloch bands. When the condensate is slowly tuned through the avoided crossing, accelerated band relaxation arises and the zero momentum approximately $C4$-invariant condensate wave function acquires finite momentum order and reduced $C2$ symmetry. For faster tuning Landau-Zener oscillations between different superfluid orders arise, which are used to characterize the avoided crossing.

Affiliated with

Also associated with

No associations

Rating

Topologically induced avoided band crossing in an optical chequerboard lattice 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 Topologically induced avoided band crossing in an optical chequerboard lattice, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Topologically induced avoided band crossing in an optical chequerboard lattice will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-318801