Robust quantum communication using a polarization-entangled photon pair

Boileau, J. C., Laflamme, R., Laforest, M. and Myers, C. R. (2004) Robust quantum communication using a polarization-entangled photon pair. Physical Review Letters, 93 22: 220501-1-220501-4. doi:10.1103/PhysRevLett.93.220501

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Author Boileau, J. C.
Laflamme, R.
Laforest, M.
Myers, C. R.
Title Robust quantum communication using a polarization-entangled photon pair
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2004-11-22
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.93.220501
Open Access Status File (Publisher version)
Volume 93
Issue 22
Start page 220501-1
End page 220501-4
Total pages 4
Place of publication Ridge, N.Y., U.S.A.
Publisher American Physical Society
Language eng
Subject 0206 Quantum Physics
Abstract Noise and imperfection of realistic devices are major obstacles for implementing quantum cryptography. In particular, birefringence in optical fibers leads to decoherence of qubits encoded in photon polarization. We show how to overcome this problem by doing single qubit quantum communication without a shared spatial reference frame and precise timing. Quantum information will be encoded in pairs of photons using tag operations, which corresponds to the time delay of one of the polarization modes. This method is robust against the phase instability of the interferometers despite the use of time bins. Moreover synchronized clocks are not required in the ideal no photon loss case as they are necessary only to label the different encoded qubits. © 2004 The American Physical Society
Keyword Photon polarization
Quantum communication
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Centre for Quantum Computer Technology Publications
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Citation counts: TR Web of Science Citation Count  Cited 43 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 42 times in Scopus Article | Citations
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Created: Fri, 08 Jan 2010, 13:39:42 EST by Jon Swabey on behalf of Faculty of Science