Passing quantum correlations to qubits using any two-mode state

  title={Passing quantum correlations to qubits using any two-mode state},
  author={Mauro Paternostro and Gerardo Adesso and Steve Campbell},
  journal={Physical Review A},
We draw an explicit connection between the statistical properties of an entangled two-mode continuous variable (CV) resource and the amount of entanglement that can be dynamically transferred to a pair of noninteracting two-level systems. More specifically, we rigorously reformulate entanglement-transfer process by making use of covariance matrix formalism. When the resource state is Gaussian, our method makes the approach to the transfer of quantum correlations much more flexible than in… 
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  • Rev. Lett 96, 080501
  • 2006


  • Rev. A73, 042310
  • 2006

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  • Rev. A 75, 032336 (2007); Phys. Rev. A. 79, 022307 (2009); M. Bina, F. Casagrande, M. Genoni, A. Lulli, and M. G. A. Paris, arXiv:0904.4317
  • 2009


  • Rev. A 74, 042303 (2006); D. Cavalcanti, J. G. Oliveira, J. G. de Faria, M. O. Cunha, and M. França Santos, Phys. Rev. A 74, 042328
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