Otro
Localization of a dipolar Bose-Einstein condensate in a bichromatic optical lattice
Registro en:
Journal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 43, n. 20, p. 8, 2010.
0953-4075
10.1088/0953-4075/43/20/205305
WOS:000282516800023
Autor
Muruganandam, P.
Kumar, R. Kishor
Adhikari, Sadhan Kumar
Resumen
By numerical simulation and variational analysis of the Gross-Pitaevskii equation we study the localization, with an exponential tail, of a dipolar Bose-Einstein condensate (DBEC) of Cr-52 atoms in a three-dimensional bichromatic optical lattice (OL) generated by two monochromatic OLs of incommensurate wavelengths along three orthogonal directions. For a fixed dipole-dipole interaction, a localized state of a small number of atoms (similar to 1000) could be obtained when the short-range interaction is not too attractive or not too repulsive. A phase diagram showing the region of stability of a DBEC with a short-range interaction and dipole-dipole interaction is given. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)