Diffusion and Localization of Cold Atoms in 3D Optical Speckle

Afifa Yedjour (1, 2) , B. van Tiggelen (1)

1 LPM2C - Laboratoire de physique et modélisation des milieux condensés
2 LPPMCA - Laboratoire de Physique des Plasmas des Mat\'{e}riaux Conducteurs, et leurs Applications

In this work we re-formulate and solve the self-consistent theory for localization to a Bose-Einstein condensate expanding in a 3D optical speckle. The long-range nature of the fluctuations in the potential energy, treated in the self-consistent Born approximation, make the scattering strongly velocity dependent, and its consequences for mobility edge and fraction of localized atoms have been investigated numerically.

Mots clés: Anderson Localization; Bose-Einstein Condensation

Domaines: Optique [physics.optics]

Afifa Yedjour, B. van Tiggelen. Diffusion and Localization of Cold Atoms in 3D Optical Speckle. The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2009, pp.8. ⟨hal-00442270⟩