Polarization-entanglement-conserving frequency conversion of photons

Ramelow, S., Fedrizzi, A., Poppe, A., Langford, N. K. and Zeilinger, A. (2012) Polarization-entanglement-conserving frequency conversion of photons. Physical Review A, 85 1: . doi:10.1103/PhysRevA.85.013845

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Author Ramelow, S.
Fedrizzi, A.
Poppe, A.
Langford, N. K.
Zeilinger, A.
Title Polarization-entanglement-conserving frequency conversion of photons
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2012-01-01
Sub-type Article (original research)
DOI 10.1103/PhysRevA.85.013845
Open Access Status File (Publisher version)
Volume 85
Issue 1
Total pages 5
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract Entangled photons play a pivotal role in the distribution of quantum information in quantum networks. However, the frequency bands for optimal transmission and storage of photons are often not the same. Here, we experimentally demonstrate the coherent frequency conversion of photons entangled in their polarization, awidely used degree of freedom in photonic quantum information processing. We verify the successful entanglement conversion by violating a Clauser-Horne-Shimony-Holt (CHSH) Bell inequality and fully characterize our near-perfect entanglement transfer using both state and process tomography. Our implementation is robust and flexible, making it a practical building block for future quantum networks.
Keyword Linbo3 wave guides
Quantum transduction
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2013 Collection
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Citation counts: TR Web of Science Citation Count  Cited 34 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 38 times in Scopus Article | Citations
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Created: Mon, 05 Mar 2012, 03:44:10 EST by System User on behalf of School of Mathematics & Physics