Quantum Switch for Continuous Variable Teleportation

Details Quantum Switch for Continuous Variable Teleportation Quantum Switch for Continuous Variable Teleportation

2001-05-16

arxiv.org/abs/quant-ph/0105073v1

Physics

Quantum Physics

1 figure

Scientific paper

10.1088/1464-4266/3/5/301

A novel quantum switch for continuous variables teleportation is proposed. Two pairs of EPR beams with identical frequency and constant phase relation are composed on two beamsplitters to produce two pairs of conditional entangled beams, two of which are sent to two sending stations(Alices) and others to two receiving stations(bobs). The EPR entanglement initionally results from two-mode quadrature squeezed state light. Converting the squeezed component of one of EPR sources between amplitude and phase, the input quantum state at a sender will be reproduced at two receivers in turn. The switching system manipulated by squeezed state light might be developed as a practical quantum switch device for the communication and teleportation of quantum information.

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