On the transfer of entanglement from a two-mode squeezed state to a pair of qubits

Abstract

There have recently been interests in transferring entanglement between two quantum systems in different Hilbert spaces. In particular, the study of entanglement transfer from a continuous-variable to a qubit system has a primary importance due to practical implications. A continuous-variable system easily propagates entanglement while a qubit system is easy to manipulate. We investigate conditions to entangle two two-level atoms for a broad-band two-mode squeezed field driving the cavities where the atoms are.

4 pages, 2 figure, RevTeX; revised version: more results added, some points clarified