Fig.1 Schematic of the experimental setup for continuous-variable entanglement-assisted quantum comumication. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Fig.1 Schematic of the experimental setup for continuous-variable entanglement-assisted quantum comumication.

Caption

 Fig.1 Schematic of the experimental setup for continuous-variable entanglement-assisted quantum comumication.Alice encodes classical signals on the ancilla beam by an amplitude modulator (AM) and a phase modulator (PM) and couples it with one of the entangled beams by a 99:1 fiber beamsplitter. Both the entangled beams and local beam are transmitted to Bob through fiber channels respectively. The combination of polarization controller (PC), polarization beam splitter (PBS) and photodetector (PD) is used to control the polarization of output beams at Bob’s station. The output beams after decoding are measured by two homodyne detectors.

Credit

Xiaolong Su et al.

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