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Quantum tunneling across spin domains in a Bose-Einstein condensate

D. M. Stamper-Kurn·H. -J. Miesner·A. P. Chikkatur·S. Inouye·J. Stenger·W. Ketterle
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Abstract

Quantum tunneling was observed in the decay of metastable spin domains in gaseous Bose-Einstein condensates. A mean-field description of the tunneling was developed and compared with measurement. The tunneling rates are a sensitive probe of the boundary between spin domains, and indicate a spin structure in the boundary between spin domains which is prohibited in the bulk fluid. These experiments were performed with optically trapped F=1 spinor Bose-Einstein condensates of sodium.

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D. M. Stamper-Kurn, H. -J. Miesner, A. P. Chikkatur, S. Inouye, J. Stenger, W. Ketterle. 1999-02-22. Quantum tunneling across spin domains in a Bose-Einstein condensate. https://doi.org/10.1103/physrevlett.83.661

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