Superfluids of vanishing roton gap

Details Superfluids of vanishing roton gap Superfluids of vanishing roton gap

2011-06-06

arxiv.org/abs/1106.1048v1

Physics

Condensed Matter

Other Condensed Matter

5 pages, 2 figures

Scientific paper

Dense Bose superfluids, as HeII, differ from dilute ones by the existence of a roton minimum in their excitation spectrum. When the roton energy gap is small, the shape of this roton minimum controls the superfluid behaviour close to any singularity, such as vortex cores, or close to solid boundaries. The obtained density oscillations close to the singularity are shown to be fully described by a linear perturbation theory, that relates their frequency and exponential damping to the shape of the roton minimum. This allows for general conclusions, for superfluids in porous media, or in transcient high pressure state.

Affiliated with

Also associated with

No associations

Rating

Superfluids of vanishing roton gap 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 Superfluids of vanishing roton gap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superfluids of vanishing roton gap will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-389928