Mean-field phase diagram of disordered bosons in a lattice at non-zero temperature

Details Mean-field phase diagram of disordered bosons in a lattice at non-zero temperature Mean-field phase diagram of disordered bosons in a lattice at non-zero temperature

2006-05-06

arxiv.org/abs/cond-mat/0605163v3

New J. Phys. 8, 187 (2006)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1088/1367-2630/8/9/187

Bosons in a periodic lattice with on-site disorder at low but non-zero temperature are considered within a mean-field theory. The criteria used for the definition of the superfluid, Mott insulator and Bose glass are analysed. Since the compressibility does never vanish at non-zero temperature, it can not be used as a general criterium. We show that the phases are unambiguously distinguished by the superfluid density and the density of states of the low-energy exitations. The phase diagram of the system is calculated. It is shown that even a tiny temperature leads to a significant shift of the boundary between the Bose glass and superfluid.

Affiliated with

Also associated with

No associations

Rating

Mean-field phase diagram of disordered bosons in a lattice at non-zero temperature 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 Mean-field phase diagram of disordered bosons in a lattice at non-zero temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mean-field phase diagram of disordered bosons in a lattice at non-zero temperature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-80909