Localized states in an ultracold atomic gas trapped in a bichromatic potential: The effect of a time-varying phase

Abbas, S 2012, 'Localized states in an ultracold atomic gas trapped in a bichromatic potential: The effect of a time-varying phase', Communications in Nonlinear Science and Numerical Simulation, vol. 17, no. 9, pp. 3552-3557.


Document type: Journal Article
Collection: Journal Articles

Title Localized states in an ultracold atomic gas trapped in a bichromatic potential: The effect of a time-varying phase
Author(s) Abbas, S
Year 2012
Journal name Communications in Nonlinear Science and Numerical Simulation
Volume number 17
Issue number 9
Start page 3552
End page 3557
Total pages 6
Publisher Elsevier B.V.
Abstract Localization phenomena observed in an ultracold atomic gas trapped in a bichromatic optical lattice were found to be sensitive to the degree of lattice disorder, and are affected by the extent of interatomic interaction. In this work, I shall discuss the dependence of localization on the phase difference between the two superimposed optical waves. The step and sinusoidal phase functions in region III identified in the work by Larcher et al. [1], are studied. A step varying phase mildly distorts localization, whereas a sinusoidally varying phase will take the system to a unique form of localization, which we call logarithmic localization.
Subject Condensed Matter Modelling and Density Functional Theory
Radiation and Matter
Quantum Chemistry
Keyword(s) Anderson localization
Discrete nonlinear Schrödinger equation
Ultracold atomic gas
DOI - identifier 10.1016/j.cnsns.2012.01.006
Copyright notice © 2012 Elsevier B.V.
ISSN 1007-5704
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