One and two dimensional Bose-Einstein condensation of atoms in dark magneto-optical lattices

Abstract

The motion of atoms in a dark magneto-optical lattice is considered. This lattice is formed by a non-uniformly polarized laser field in the presence of a static magnetic field. Cold atoms are localized in the vicinity of points where dark states are not destroyed by a magnetic field. As a result the optical interaction tends to zero (dark or gray lattices). Depending on the field configuration such a lattice can exhibit one or two-dimensional periodicity. It is shown that in 1D and 2D dark magneto-optical lattices the effects connected with the Bose-statistics of particles can be observed under the temperature $10^{-5}-10^{-6}K$ and densities $10^{11}-10^{12}c{m}^{-3}$, those are usual for current experiments on laser cooling.

arXiv comment5 pages RevTex, 3 figures ps, submitted to PRA, slightly corrected style options. E-mail: [email protected]

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