Hydrodynamic excitations of Bose condensates in anisotropic traps

Martin Fliesser, A. Csordás, P. Szépfalusy, Robert Graham

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

The collective excitations of Bose condensates in anisotropic axially symmetric harmonic traps are investigated in the hydrodynamic and Thomas-Fermi limit. We identify an additional conserved quantity, besides the axial angular momentum and the total energy, and separate the wave equation in elliptic coordinates. The solution is thereby reduced to the algebraic problem of diagonalizing finite-dimensional matrices. The classical quasiparticle dynamics in the local-density approximation for energies of the order of the chemical potential is shown to be chaotic.

Original languageEnglish
JournalPhysical Review A
Volume56
Issue number4
Publication statusPublished - 1997

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condensates
hydrodynamics
traps
wave equations
excitation
angular momentum
harmonics
energy
approximation

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Hydrodynamic excitations of Bose condensates in anisotropic traps. / Fliesser, Martin; Csordás, A.; Szépfalusy, P.; Graham, Robert.

In: Physical Review A, Vol. 56, No. 4, 1997.

Research output: Contribution to journalArticle

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