A Gutzwiller approach to squeezed states in an optical lattice
Abstract
The ground state of atoms in an optical lattice is found using a Gutzwiller approximation. In particular we examine systems with large numbers of atoms per site. The number squeezing in the ground state is calculated in terms of lattice parameters. The approximation successfully describes the state of an arbitrary number of identical lattice sites at zero temperature, for both the superfluid and Mott insulator phases.
 Publication:

Journal of Physics B Atomic Molecular Physics
 Pub Date:
 July 2002
 DOI:
 10.1088/09534075/35/13/314
 Bibcode:
 2002JPhB...35.3019S