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. 2007 May 25;98(21):210401.
doi: 10.1103/PhysRevLett.98.210401. Epub 2007 May 23.

Anderson localization of expanding Bose-Einstein condensates in random potentials

L Sanchez-Palencia  1 , D Clément, P Lugan, P Bouyer, G V Shlyapnikov, A Aspect
Affiliations

Anderson localization of expanding Bose-Einstein condensates in random potentials

L Sanchez-Palencia et al. Phys Rev Lett. .

Erratum in

  • Phys Rev Lett. 2011 Apr 8;106(14):149901

Abstract

We show that the expansion of an initially confined interacting 1D Bose-Einstein condensate can exhibit Anderson localization in a weak random potential with correlation length sigma(R). For speckle potentials the Fourier transform of the correlation function vanishes for momenta k>2/sigma(R) so that the Lyapunov exponent vanishes in the Born approximation for k>1/sigma(R). Then, for the initial healing length of the condensate xi(in)>sigma(R) the localization is exponential, and for xi(in)<sigma(R) it changes to algebraic.

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