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Controllable continuous variable quantum state distributor
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DOI：10.1364/OL.419261.png)
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Abstract
En 中文
To scale quantum information processing, quantum state distributors are an indispensable technology in quantum networks. We present a universal scheme of a continuous variable quantum state distributor that performs point-to-multipoint distributions via quantum teleportation with partially disembodied transport. The fidelity of the state at the output nodes can be conveniently manipulated as needed by engineering the correlation noise of the Einstein-Podolsky-Rosen (EPR) beam. For a 1 -> 2 distributor, controllable distributions were demonstrated by manipulating the squeezing factor of EPR entanglement. The fidelities of the two receivers gradually changed from (2/3, 2/3) to (0.95, 0.17) corresponding to the transition from symmetric to asymmetric quantum cloning. (C) 2021 Optical Society of America
Keywords:
SQUEEZED VACUUM STATES
NOISE REDUCTION
CLONING
DB
TELEPORTATION
LIGHT