slides10.1103/PhysRevA.77.022311

Scalable continuous-variable entanglement of light beams produced by optical parametric oscillators

Abstract

We show that scalable multipartite entanglement among light fields may be generated by optical parametric oscillators (OPO). The tripartite entanglement existent among the three bright beams produced by a single OPO -- pump, signal, and idler -- is scalable to a system of many OPOs by pumping them in cascade with the same optical field. This latter serves as an entanglement distributor. The special case of two OPOs is studied, as it is shown that the resulting five bright beams share genuine multipartite entanglement. In addition, the structure of entanglement distribution among the fields can be manipulated to some degree by tuning the incident pump power. The scalability to many fields is straightforward, allowing an alternative implementation of a multipartite quantum information network with continuous variables

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0801.2706oai:arXiv.org:0801.2706
Last time updated on April 13, 2012View original full text link

This paper was published in arXiv.org e-Print Archive.

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