Quantum tweezer for atoms |
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Authors: | Diener Roberto B Wu Biao Raizen Mark G Niu Qian |
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Affiliation: | Department of Physics, The University of Texas, Austin 78712-1081, USA. |
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Abstract: | We propose a quantum tweezer for extracting a desired number of neutral atoms from a reservoir. A trapped Bose-Einstein condensate 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 at certain speeds, the dot can extract a desired number of atoms from the condensate through Landau-Zener tunneling. The feasibility of our quantum tweezer is demonstrated through realistic and extensive model calculations. |
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