Remote Generation of Quantum CommunicationChannel with Continuous Variable via BeamSplitters
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Graphical Abstract
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Abstract
The experimentally feasible scheme of re-
motely generating continuous variable quantum entangled
communication channel based on beam splitters is pro-
posed. It is showed that the long-haul quantum communi-
cation channel can be established by means of an assisted
single-photon entangled state and a pair of single-mode
squeezed vacuum states. The degree of entanglement of
the desired continuous variable entangled channel is only
related with the assisted beam splitter when the other two
parallel ones are of the same parameter values. The suc-
cess probability of creating maximal entangled channel can
be enhanced with the increasing of beam splitter re°ec-
tion coe±cients and decreasing of squeezing parameters.
Furthermore, the puri¯cation of success probability is dis-
cussed for imperfect photo-detectors.
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