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Quantum entanglement in spinor Bose-Einstein condensates

L. -M. Duan·J. I. Cirac·P. Zoller
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Abstract

We propose a scheme to generate and detect various kinds of quantum entanglement in a spin-1 Bose-Einstein condensate. It is shown that substantial many-particle entanglement can be generated directly in the spin-1 condensate by free dynamical evolution with a properly prepared initial state. The scheme also provides a simple method to generate three-mode entanglement in the second-quantization picture and to detect the continuous variable type of entanglement between two effective modes in the spin-1 condensate.

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L. -M. Duan, J. I. Cirac, P. Zoller. 2001-07-10. Quantum entanglement in spinor Bose-Einstein condensates. https://doi.org/10.1103/physreva.65.033619

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