Frequency and damping of hydrodynamic modes in a trapped Bose-condensed gas

Tetsuro Nikuni, Allan Griffin

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The Landau-Khalatnikov two-fluid hydrodynamics equations which was used to derive general expressions for the frequency and damping of hydrodynamic modes in a trapped Bose-condensed gas was discussed. The expressions were derived using variational solution of the two-fluid hydrodynamic equations in the Landau limit. It was observed that the expressions were use to evaluate the hydrodynamic damping of the monople-quadropole condensate mode where mode is zero in the superfluid phase. The crossover from the collisionless to the hydrodynamic region was discussed using the moment method.

Original languageEnglish
Article number023604
Pages (from-to)236041-2360416
Number of pages2124376
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume69
Issue number2
Publication statusPublished - Feb 2004

Fingerprint Dive into the research topics of 'Frequency and damping of hydrodynamic modes in a trapped Bose-condensed gas'. Together they form a unique fingerprint.

  • Cite this