Critical velocities in two-component superfluid Bose gases

Details Critical velocities in two-component superfluid Bose gases Critical velocities in two-component superfluid Bose gases

2008-07-04

arxiv.org/abs/0807.0726v1

J. Low. Temp. Phys., 150, 612(2008)

Physics

Condensed Matter

Other Condensed Matter

6 pages, 1 figures

Scientific paper

10.1007/s10909-007-9595-3

On the ground of the Landau criterion we study the behavior of critical velocities in a superfluid two-component Bose gas. It is found that under motion of the components with different velocities the velocity of each component should not be lower than a minimum phase velocity of elementary excitations (s_). The Landau criterion yields a relation between the critical velocities of the components (v_{c1}, v_{c2}). The velocity of one or even both components may exceed s_. The maximum value of the critical velocity of a given component can be reached when the other component does not move. The approach is generalized for a two-component condensate confined in a cylindrical harmonic potential. PACS numbers: 03.75.Kk,03.75.Mn

Affiliated with

Also associated with

No associations

Rating

Critical velocities in two-component superfluid Bose gases 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 Critical velocities in two-component superfluid Bose gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical velocities in two-component superfluid Bose gases will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-597995