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Conditional preparation of single photons using parametric downconversion: a recipe for purity

Abstract:

In an experiment reported recently (Mosley et al 2008 Phys. Rev. Lett. 100 133601), we demonstrated that, through group velocity matched parametric downconversion, heralded single photons can be generated in pure quantum states without spectral filtering. The technique relies on factorable photon pair production, initially developed theoretically in the strict collinear regime; focusing - required in any experimental implementation - can ruin this factorability. Here, we present the numerical...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Ultrafast Group
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Ultrafast Group
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Ultrafast Group
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Ultrafast Group
Role:
Author

Contributors

More from this funder
Name:
Engineering and Physical Sciences Research Council
Grant:
"GR/S82716/01", "EP/C013840/1"
More from this funder
Name:
Royal Society
Funding agency for:
Smith, B
Publisher:
Institute of Physics Publishing Ltd.
Journal:
New Journal of Physics More from this journal
Volume:
10
Issue:
9
Article number:
093011
Publication date:
2008-09-01
DOI:
EISSN:
1367-2630
Language:
English
Keywords:
Subjects:
UUID:
uuid:1b90be06-d760-4c68-9c8b-a69425149243
Local pid:
ora:2486
Deposit date:
2009-01-09

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