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Ultracompact Generation of Continuous-Variable Cluster States

Steve Flammia, Perimeter Institute

(Session 1 : Friday from 10:30-11:00)

Abstract. We propose an experimental scheme that has the potential for large-scale realization of continuous-variable (CV) cluster states for universal quantum computation. We do this by mapping CV cluster-state graphs onto two-mode squeezing graphs, which can be engineered into a single optical parametric oscillator (OPO). The desired CV cluster state is produced directly from a joint squeezing operation on the vacuum using a multi-frequency pump beam. This method has potential for ultracompact experimental implementation. As an illustration, we detail an experimental proposal for creating a four-mode square CV cluster state with a single OPO. (PRA 76, 010302 (2007) and arXiv:0710.4980)