The Twist Mode in Atomic Fermi Gases
arXiv:cond-mat/0106416 · doi:10.1103/PhysRevA.64.055601
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.
4 pages, 1 table (using REVTeX)
References in corpus (7)
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