Title:
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Twist mode in atomic Fermi gases
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Author:
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Viñas Gausí, Xavier; Roth, R.; Schuck, Peter; Wambach, J.
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Constitució de la matèria -Mecànica estadística -Gas d'electrons -Constitution of matter -Statistical mechanics -Electron gas |
Rights:
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(c) The American Physical Society, 2001
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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