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High-efficiency detection of a single quantum of angular momentum by suppression of optical pumping

Abstract:

We propose and demonstrate experimentally the discrimination between two spin states of an atom purely on the basis of their angular momentum. The discrimination relies on angular momentum selection rules and does not require magnetic effects such as a magnetic dipole moment of the atom or an applied magnetic field. The central ingredient is to prevent by coherent population trapping an optical pumping process which would otherwise relax the spin state before a detectable signal could be obta...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhyRevLett.93.153601

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Institution:
University of Oxford
Research group:
Ion Trap Quantum Computing Group
Department:
Centre for Quantum Computation
Role:
Author
More by this author
Institution:
University of Oxford
Research group:
Ion Trap Quantum Computing Group
Department:
Centre for Quantum Computation
Role:
Author
More by this author
Institution:
University of Oxford
Research group:
Ion Trap Quantum Computing Group
Department:
Centre for Quantum Computation
Role:
Author
More by this author
Institution:
University of Oxford
Research group:
Ion Trap Quantum Computing Group
Department:
Centre for Quantum Computation
Role:
Author
More by this author
Institution:
University of Oxford
Research group:
Ion Trap Quantum Computing Group
Department:
Centre for Quantum Computation
Role:
Author
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Engineering and Physical Sciences Research Council More from this funder
European Union More from this funder
Royal Society More from this funder
National Security Agency More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
93
Issue:
15
Article number:
153601
Publication date:
2004-10-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Subjects:
UUID:
uuid:c8b6db3d-5df9-46f4-b498-908c1e7c24ff
Local pid:
ora:2875
Deposit date:
2009-08-17

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