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Collective excitations in Bose-Einstein condensates in triaxially anisotropic parabolic traps

by: András Csordás, Robert Graham
Physical Review A, Vol. 59 (Feb 1999), pp. 1477-1487, doi:10.1103/physreva.59.1477  Key: citeulike:12047733

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Abstract

The wave equation of low-frequency density waves in Bose-Einstein condensates at vanishing temperature in arbitrarily anisotropic harmonic traps is separable in elliptic coordinates, provided the condensate can be treated in the Thomas-Fermi approximation. We present a complete solution of the mode functions, which are polynomials of finite order, and their eigenfrequencies, which are characterized by three-integer quantum numbers.


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