Entanglement reciprocation using three level atoms in a lambda configuration

Details Entanglement reciprocation using three level atoms in a lambda configuration Entanglement reciprocation using three level atoms in a lambda configuration

2008-03-19

arxiv.org/abs/0803.2863v1

Eur. Phys. J. D, 47, 127 (2008)

Physics

Quantum Physics

Scientific paper

10.1140/epjd/e2008-00019-1

We propose a scheme in which entanglement can be transferred from atoms (discrete variables) to entangled states of cavity fields (continuous variables). The cavities play the role of a kind of quantum memory for entanglement, in such a way that it is possible to retrieve it back to the atoms. In our method, two three level atoms in a lambda configuration, previously entangled, are set to interact with single mode cavity fields prepared in coherent states. During the process, one e-bit of entanglement may be deposited in the cavities in an efficient way. We also show that the stored entanglement may be transferred back to flying atoms.

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