Ground state cooling of atoms in optical lattices

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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.
12 pages, 7 figures

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/109573

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0603859
 http://arxiv.org/abs/cond-mat/0603859
 Phys. Rev. A 74, 013622 (2006)
 doi:10.1103/PhysRevA.74.013622

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arXiv