Universal quantum computation with continuous-variable cluster states

Menicucci, Nicolas C., van Loock,, Peter, Gu, Mile, Weedbrook, Christian, Ralph, Timothy C. and Nielsen, Michael A. (2006) Universal quantum computation with continuous-variable cluster states. Physical Review Letters, 97 11: 110501-1-110501-4. doi:10.1103/PhysRevLett.97.110501

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Author Menicucci, Nicolas C.
van Loock,, Peter
Gu, Mile
Weedbrook, Christian
Ralph, Timothy C.
Nielsen, Michael A.
Title Universal quantum computation with continuous-variable cluster states
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2006-08-15
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.97.110501
Open Access Status File (Publisher version)
Volume 97
Issue 11
Start page 110501-1
End page 110501-4
Total pages 4
Editor George Basbas
Jack Sandweiss
Reinhardt B. Schuhmann
Stanley G. Brown
Place of publication Ridge, N.Y., U.S.A.
Publisher American Physical Soc
Collection year 2006
Language eng
Subject C1
291702 Optical and Photonic Systems
780102 Physical sciences
Abstract We describe a generalization of the cluster-state model of quantum computation to continuous-variable systems, along with a proposal for an optical implementation using squeezed-light sources, linear optics, and homodyne detection. For universal quantum computation, a nonlinear element is required. This can be satisfied by adding to the toolbox any single-mode non-Gaussian measurement, while the initial cluster state itself remains Gaussian. Homodyne detection alone suffices to perform an arbitrary multimode Gaussian transformation via the cluster state. We also propose an experiment to demonstrate cluster-based error reduction when implementing Gaussian operations.
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 09:27:05 EST