Ultracompact generation of continuous-variable cluster states

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Ultracompact generation of continuous-variable cluster states

Nicolas C. Menicucci, Steven T. Flammia, Hussain Zaidi, and Olivier Pfister

Phys. Rev. A 76, 010302(R) – Published 12 July 2007

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 multifrequency 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.

Received 12 March 2007

DOI:https://doi.org/10.1103/PhysRevA.76.010302

Authors & Affiliations

Nicolas C. Menicucci^1,2,*, Steven T. Flammia³, Hussain Zaidi⁴, and Olivier Pfister^4,†

¹Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
²Department of Physics, The University of Queensland, Brisbane, Queensland 4072, Australia
³Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
⁴Department of Physics, University of Virginia, 382 McCormick Road, Charlottesville, Virginia 22904-4714, USA

^*nmen@princeton.edu
^†opfister@virginia.edu

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Issue

Vol. 76, Iss. 1 — July 2007

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