Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations

Details Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations

2008-09-10

arxiv.org/abs/0809.1814v2

Phys. Rev. A 78, 053609 (2008)

Physics

Condensed Matter

Other Condensed Matter

8 pages, 5 figures

Scientific paper

10.1103/PhysRevA.78.053609

We present detailed measurements of the frequency and damping of three different collective modes in an ultracold trapped Fermi gas of $^6$Li atoms with resonantly tuned interactions. The measurements are carried out over a wide range of temperatures. We focus on the unitarity limit, where the scattering length is much greater than all other relevant length scales. The results are compared to theoretical calculations that take into account Pauli blocking and pair correlations in the normal state above the critical temperature for superfluidity. We show that these two effects nearly compensate each other and the behavior of the gas is close to the one of a classical gas.

Affiliated with

Also associated with

No associations

Rating

Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations 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 Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-161657