Unconditional teleportation of continuous-variable entanglement
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چکیده
We give a protocol and criteria for demonstrating unconditional teleportation of continuous-variable entanglement ~i.e., entanglement swapping!. The initial entangled states are produced with squeezed light and linear optics. We show that any nonzero entanglement ~any nonzero squeezing! in both of two entanglement sources is sufficient for entanglement swapping to occur. In fact, realization of continuous-variable entanglement swapping is possible using only two single-mode squeezed states.
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تاریخ انتشار 1999