Induced interaction and crystallization of self-localized impurity fields in a Bose-Einstein condensate

Details Induced interaction and crystallization of self-localized impurity fields in a Bose-Einstein condensate Induced interaction and crystallization of self-localized impurity fields in a Bose-Einstein condensate

2009-04-09

arxiv.org/abs/0904.1569v2

Phys. Rev. A 80, 013609 (2009)

Physics

Condensed Matter

Quantum Gases

v2: movies will be linked from Phys Rev A website; corrected hysteresis discussion; other minor edits; 16 pages, 9 figures, (3

Scientific paper

10.1103/PhysRevA.80.013609

We model the behavior of N classical impurity fields immersed in a larger Bose-Einstein condensate by N+1 coupled nonlinear Schrodinger equations in 1, 2, and 3 space dimensions. We discuss the stability of the uniform miscible system and show the importance of surface tension for self localization of the impurity fields. We derive analytically the attractive tail of impurity-impurity interaction due to mediation by the underlying condensate. Assuming all impurity fields interact with the same strength, we explore the resulting phase diagram, which contains four phases: {\it I}) all fields are miscible; {\it II}) the impurity fields are miscible with each other but phase separate from the condensate as a single bubble; {\it III}) the localized impurity fields stay miscible with the condensate, but not with each other; and {\it IV}) the impurity fields phase separate from the condensate and each other, forming a crystalline structure within a bubble. Thus, we show that a crystal can be constructed solely from superfluid components. Finally, we argue that the crystalline phases maintain their superfluid behavior, i.e. they possess a nonclassical rotational inertia, which, combined with lattice order, is a characteristic of supersolidity.

Affiliated with

Also associated with

No associations

Rating

Induced interaction and crystallization of self-localized impurity fields in a Bose-Einstein condensate 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 Induced interaction and crystallization of self-localized impurity fields in a Bose-Einstein condensate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induced interaction and crystallization of self-localized impurity fields in a Bose-Einstein condensate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-408946