Quantum entanglement in spinor Bose-Einstein condensates
L.-M. Duan, J. I. Cirac, P. Zoller
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.
arXiv:quant-ph/0107055•Physical Review A•Feb 27, 2002•100 citations