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Fiber-optic realization of anisotropic depolarizing quantum channels

Abstract:

We employed an electrically driven polarization controller to implement anisotropic depolarizing quantum channels for the polarization state of single photons. The channels were characterized by means of ancilla-assisted quantum process tomography using polarization-entangled photons generated in the process of spontaneous parametric downconversion. The demonstrated depolarization method offers good repeatability, low cost, and compatibility with fiber-optic setups. It does not perturb the mo...

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Publication status:
Published

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Publisher copy:
10.1364/JOSAB.25.000668

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
Publisher:
Optical Society of American (OSA)
Journal:
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS More from this journal
Volume:
25
Issue:
4
Pages:
668-673
Publication date:
2008-04-01
DOI:
EISSN:
1520-8540
ISSN:
0740-3224
Language:
English
Pubs id:
pubs:395711
UUID:
uuid:07bb3548-db49-486c-af90-b31106255017
Local pid:
pubs:395711
Source identifiers:
395711
Deposit date:
2013-11-16

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