A Quantum Tweezer for Atoms
Soft Condensed Matter
2009-11-07 v4 Atomic Physics
Abstract
We propose a quantum tweezer for extracting a desired number of neutral atoms from a reservoir. A trapped Bose-Einstein condensate (BEC) is used as the reservoir, taking advantage of its coherent nature, which can guarantee a constant outcome. The tweezer is an attractive quantum dot, which may be generated by red-detuned laser light. By moving with certain speeds, the dot can extract a desired number of atoms from the BEC through Landau-Zener tunneling. The feasibility of our quantum tweezer is demonstrated through realistic and extensive model calculations.
Cite
@article{arxiv.cond-mat/0201159,
title = {A Quantum Tweezer for Atoms},
author = {Roberto B. Diener and Biao Wu and Mark G. Raizen and Qian Niu},
journal= {arXiv preprint arXiv:cond-mat/0201159},
year = {2009}
}
Comments
4 pages, 6 figures Revised version