The Twist Mode in Atomic Fermi Gases
Statistical Mechanics
2008-12-18 v1 Nuclear Theory
Abstract
The quantum-kinetic energy of a finite number of trapped fermionic atoms provides a restoring force for shear motion due to a distortion of the momentum distribution. In analogy to the twist mode of nuclear physics it is proposed that counter-rotating the upper and lower hemisphere of a spherical atomic cloud yields a finite-frequency mode closely related to transverse zero-sound waves in bulk Fermi liquids.
Cite
@article{arxiv.cond-mat/0106416,
title = {The Twist Mode in Atomic Fermi Gases},
author = {X. Vinas and R. Roth and P. Schuck and J. Wambach},
journal= {arXiv preprint arXiv:cond-mat/0106416},
year = {2008}
}
Comments
4 pages, 1 table (using REVTeX)