Broadcasting of continuous variable entanglement
arXiv:0708.1869 · doi:10.1103/PhysRevA.77.042301
Abstract
We present a scheme for broadcasting of continuous variable entanglement. We show how an initial two-mode squeezed state of the electromagnetic field shared by two distant parties can be broadcasted into two nonlocal bipartite entangled states. Our protocol uses a local linear amplifier and a beam splitter at each end. We compute the fidelity of the output entangled states and show that the broadcasting can be implemented for a variety of input squeezed states and amplifier phases.
4 pages, 2 eps figures, RevTex
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