Mean-field phase diagram of the 1-D Bose gas in a disorder potential

Details Mean-field phase diagram of the 1-D Bose gas in a disorder potential Mean-field phase diagram of the 1-D Bose gas in a disorder potential

2009-12-21

arxiv.org/abs/0912.4257v1

Phys. Rev. A 81, 053603 (2010)

Physics

Condensed Matter

Quantum Gases

10 pages, 10 figures

Scientific paper

10.1103/PhysRevA.81.053603

We study the quantum phase transition of the 1D weakly interacting Bose gas in the presence of disorder. We characterize the phase transition as a function of disorder and interaction strengths, by inspecting the long-range behavior of the one-body density matrix as well as the drop in the superfluid fraction. We focus on the properties of the low-energy Bogoliubov excitations that drive the phase transition, and find that the transition to the insulator state is marked by a diverging density of states and a localization length that diverges as a power-law with power 1. We draw the phase diagram and we observe that the boundary between the superfluid and the Bose glass phase is characterized by two different algebraic relations. These can be explained analytically by considering the limiting cases of zero and infinite disorder correlation length.

Affiliated with

Also associated with

No associations

Rating

Mean-field phase diagram of the 1-D Bose gas in a disorder potential 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 the 1-D Bose gas in a disorder potential, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mean-field phase diagram of the 1-D Bose gas in a disorder potential will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-305392