Authors

K. Mallory;R. A. Van Gorder

Comments

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Abbreviated Journal Title

Phys. Rev. E

Keywords

GROSS-PITAEVSKII EQUATION; OPTICAL LATTICES; COLD ATOMS; WELL; DYNAMICS; SUPERFLUID; STATES; WAVE; SYSTEM; Physics, Fluids & Plasmas; Physics, Mathematical

Abstract

Stationary solutions for the 2 + 1 cubic nonlinear Schrodinger equation modeling Bose-Einstein condensates (BEC) in a small potential are obtained via a form of perturbation. In particular, perturbations due to small potentials which either confine or repel the BECs are studied, and under arbitrary piecewise continuous potentials, we obtain the general representation for the perturbation theory of radial BEC solutions. Numerical results are also provided for regimes where perturbative results break down (i.e., the large-potential regime). Both repulsive and attractive BECs are considered under this framework. Solutions for many specific confining potentials of physical relevance to experiments on BECs are provided in order to demonstrate the approach. We make several observations regarding the influence of the particular small potentials on the behavior of the BECs.

Journal Title

Physical Review E

Volume

90

Issue/Number

2

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

16

WOS Identifier

WOS:000340003000002

ISSN

1539-3755

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