Dynamical effects of the dipole-dipole interaction in three-dimensional optical lattices

A. M. Guzmán, P. Meystre

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We present a many-body theory of the dipole-dipole interaction in three-dimensional optical lattices generated by a four-beam configuration, specializing to the case of [Formula Presented] transitions. We construct a many-body interaction Hamiltonian in coordinate representation for an antiferromagnetic fcc optical lattice, the Schrödinger field operators being expanded on a basis of Wannier functions. We discuss the main characteristics of the dipole-dipole matrix elements giving rise to bound-bound and bound-free atom interactions in the lattice. Because of the anisotropy of the dipole-dipole interaction, specific directions can be favored for transport and scattering processes. Furthermore, since the dipole-dipole interaction depends on atomic magnetic quantum numbers, the dipole-dipole potential resembles a spin-dependent potential, and can give rise to atomic hopping with simultaneous change in the magnetic quantum number.

Original languageEnglish (US)
Pages (from-to)1139-1148
Number of pages10
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume57
Issue number2
DOIs
StatePublished - Jan 1 1998

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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