Published November 15, 2008 | Version v1
Journal article Metadata-only

Collective Excitations and Nonlinear Dynamics of 1D BEC with Two- and Three-body Interactions in Anharmonic Traps

Creators

  • 1. Faculty of Science, Shaanxi University of Science and Technology, Xi'an 710021 (China)
  • 2. Physics and Electronics Engineering College, Northwest Normal University, Lanzhou 730070 (China)

Description

The collective excitations of low-dimensional Bose-Einstein condensates with two- and three-body interactions in anharmonic potentials are investigated. Using the standard variational approach, the governing equations of motions for the low-energy excitations are obtained by solving time-dependent Gross-Pitaevskii-Ginzburg equation, and the excitation spectrums are calculated in small amplitude limit. The frequency shift and nonlinear mode coupling induced by the anharmonic distortion (adding cubic, quartic, or quintic term to a harmonic trap) are studied

Availability note (English)

Available from http://dx.doi.org/10.1088/0253-6102/50/5/24

Additional details

Identifiers

DOI
10.1088/0253-6102/50/5/24;

Publishing Information

Journal Title
Communications in Theoretical Physics
Journal Volume
50
Journal Issue
5
Journal Page Range
p. 1129-1136
ISSN
0253-6102

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40076988
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
BOSE-EINSTEIN CONDENSATION; COLLECTIVE EXCITATIONS; EQUATIONS OF MOTION; NONLINEAR PROBLEMS; THREE-BODY PROBLEM; TIME DEPENDENCE; TRAPS; VARIATIONAL METHODS
Descriptors DEC
CALCULATION METHODS; DIFFERENTIAL EQUATIONS; ENERGY-LEVEL TRANSITIONS; EQUATIONS; EXCITATION; MANY-BODY PROBLEM; PARTIAL DIFFERENTIAL EQUATIONS