Published November 2010 | Version v1
Journal article Metadata-only

Spatially-antisymmetric localization of matter wave in a bichromatic optical lattice

Creators

  • 1. Instituto de Física Teórica, Universidade Estadual Paulista (UNESP), São Paulo 01.140-070, São Paulo (Brazil)

Description

By direct numerical simulation of the time-dependent Gross-Pitaevskii equation using the split-step Fourier spectral method we study the double-humped localization of a cigar-shaped Bose-Einstein condensate (BEC) in a one-dimensional bichromatic quasi-periodic optical-lattice potential, as used in a recent experiment on the localization of a BEC [G. Roati et al., Nature 453, 895 (2008)]. Such states are spatially antisymmetric and are excited modes of Anderson localization. Where possible, we have compared the numerical results with a variational analysis. We also demonstrate the stability of the localized double-humped BEC states under small perturbation

Availability note (English)

Available from http://dx.doi.org/10.1002/lapl.201010063

Additional details

Identifiers

DOI
10.1002/lapl.201010063;
arXiv
arXiv:1006.4277v1;

Publishing Information

Journal Title
Laser physics letters (Internet)
Journal Volume
7
Journal Issue
11
Journal Page Range
p. 824-830
ISSN
1612-202X

INIS

Country of Publication
Russian Federation
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46009511
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
BOSE-EINSTEIN CONDENSATION; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; DISTURBANCES; ONE-DIMENSIONAL CALCULATIONS; PERIODICITY; POTENTIALS; TIME DEPENDENCE; VARIATIONAL METHODS; WAVE EQUATIONS
Descriptors DEC
CALCULATION METHODS; DIFFERENTIAL EQUATIONS; EQUATIONS; EVALUATION; PARTIAL DIFFERENTIAL EQUATIONS; SIMULATION; VARIATIONS