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Controllable Double-Well Magneto-Optical Trap for Neutral Atoms |
| YUN Min1,2;YIN Jian-Ping1 |
| 1Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics,East China Normal University, Shanghai 200062
2Department of Physics, Suzhou University, Suzhou 215006 |
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| Cite this article: |
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YUN Min, YIN Jian-Ping 2004 Chin. Phys. Lett. 21 1504-1507 |
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Abstract We propose a novel controllable double-well magneto-optical trap (MOT) by using a square current-carrying wire and a bias magnetic field. The spatial distributions of the magnetic fields and their gradients are calculated, and the results show that the proposed trap has double magnetic wells with two centres of zero magnetic field and can be continuously evolved as a single-well trap by reducing the current in the wire or increasing the bias field, which can be used to realize a controllable double-well MOT, even to prepare one- and two-dimensional arrays of magneto-optical lattices on the surface of an atom chip. We also estimate the number (～107) and temperature ( ～260μ K) of trapped cold atoms in our MOT.
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| Keywords:
32.80.Pj
03.75.Be
33.80.Ps
34.10.+x
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Published: 01 August 2004
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| PACS: |
32.80.Pj
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03.75.Be
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(Atom and neutron optics)
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33.80.Ps
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34.10.+x
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(General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))
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