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arxiv: 0708.1869 · v1 · submitted 2007-08-14 · 🪐 quant-ph

Broadcasting of continuous variable entanglement

classification 🪐 quant-ph
keywords broadcastingstatesamplifiercontinuousentangledentanglementsqueezedvariable
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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.

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