Ground state cooling of atoms in optical lattices
Statistical Mechanics
2007-05-23 v2
Abstract
We propose two schemes for cooling bosonic and fermionic atoms that are trapped in a deep optical lattice. The first scheme is a quantum algorithm based on particle number filtering and state dependent lattice shifts. The second protocol alternates filtering with a redistribution of particles by means of quantum tunnelling. We provide a complete theoretical analysis of both schemes and characterize the cooling efficiency in terms of the entropy. Our schemes do not require addressing of single lattice sites and use a novel method, which is based on coherent laser control, to perform very fast filtering.
Keywords
Cite
@article{arxiv.cond-mat/0603859,
title = {Ground state cooling of atoms in optical lattices},
author = {M. Popp and J. J. Garcia-Ripoll and K. G. H. Vollbrecht and J. I. Cirac},
journal= {arXiv preprint arXiv:cond-mat/0603859},
year = {2007}
}
Comments
12 pages, 7 figures