English

Localization of a dipolar Bose-Einstein condensate in a bichromatic optical lattice

Quantum Gases 2015-05-19 v1

Abstract

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 52^{52}Cr atoms in a three-dimensional bichromatic optical-lattice (OL) generated by two monochromatic OL of incommensurate wavelengths along three orthogonal directions. For a fixed dipole-dipole interaction, a localized state of a small number of atoms (1000\sim 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 short-range interaction and dipole-dipole interaction is given.

Keywords

Cite

@article{arxiv.1008.3294,
  title  = {Localization of a dipolar Bose-Einstein condensate in a bichromatic optical lattice},
  author = {P. Muruganandam and R. Kishor Kumar and S. K. Adhikari},
  journal= {arXiv preprint arXiv:1008.3294},
  year   = {2015}
}