Generation of pure continuous-variable entangled cluster states of four separate atomic ensembles in a ring cavity

Li, Gao-Xiang, Ke, Sha-sha and Ficek, Zbigniew (2009) Generation of pure continuous-variable entangled cluster states of four separate atomic ensembles in a ring cavity. Physical Review A (Atomic, Molecular and Optical Physics), 79 3: 1-9. doi:10.1103/PhysRevA.79.033827

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Author Li, Gao-Xiang
Ke, Sha-sha
Ficek, Zbigniew
Title Generation of pure continuous-variable entangled cluster states of four separate atomic ensembles in a ring cavity
Journal name Physical Review A (Atomic, Molecular and Optical Physics)   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2009-03-01
Sub-type Article (original research)
DOI 10.1103/PhysRevA.79.033827
Open Access Status File (Publisher version)
Volume 79
Issue 3
Start page 1
End page 9
Total pages 9
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract A practical scheme is proposed for the creation of continuous-variable entangled cluster states of four distinct atomic ensembles located inside a high-finesse ring cavity. The scheme does not require a set of external input squeezed fields, a network of beam splitters, and measurements. It is based on nothing else than the dispersive interaction between the atomic ensembles and the cavity mode and a sequential application of laser pulses of a suitably adjusted amplitudes and phases. We show that the sequential laser pulses drive the atomic “field modes” into pure squeezed vacuum states. The state is then examined against the requirement to belong to the class of cluster states. We illustrate the method on three examples of the entangled cluster states: the so-called continuous-variable linear, square, and T-type cluster states.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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Citation counts: TR Web of Science Citation Count  Cited 44 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 03 Sep 2009, 18:20:09 EST by Mr Andrew Martlew on behalf of School of Mathematics & Physics