Universal mechanism of dissipation in Fermi superfluids at ultra low temperatures

Details Universal mechanism of dissipation in Fermi superfluids at ultra low temperatures Universal mechanism of dissipation in Fermi superfluids at ultra low temperatures

2011-08-29

arxiv.org/abs/1108.5534v4

Physics

Condensed Matter

Other Condensed Matter

4 pages, 1 figure, accepted to PRL

Scientific paper

We show that the vortex dynamics in Fermi superfluids at ultra-low temperatures is governed by the local heating of the vortex cores creating the heat flux carried by non-equilibrium quasiparticles emitted by moving vortices. This mechanism provides a universal zero temperature limit of dissipation in Fermi superfluids. For the typical experimental conditions realized by the turbulent motion of $^3$He-B the temperature of vortex cores is estimated to be of the order $0.2 T_c$. The dispersion of Kelvin waves is derived and the heat flow generated by Kelvin cascade is shown to have the value close to the experimentally observed.

Affiliated with

Also associated with

No associations

Rating

Universal mechanism of dissipation in Fermi superfluids at ultra low temperatures 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 Universal mechanism of dissipation in Fermi superfluids at ultra low temperatures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal mechanism of dissipation in Fermi superfluids at ultra low temperatures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-126239