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Spin-1/2 geometric phase driven by decohering quantum fields.

Abstract:
We calculate the geometric phase of a spin-1/2 system driven by one and two mode quantum fields subject to decoherence. Using the quantum jump approach, we show that the corrections to the phase in the no-jump trajectory are different when considering adiabatic and nonadiabatic evolutions. We discuss the implications of our results from both fundamental as well as quantum computational perspectives.
Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Journal:
Physical Review Letters
Volume:
92
Issue:
2
Pages:
020402
Publication date:
2004-01-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
155105
Language:
English
Pubs id:
pubs:155105
UUID:
uuid:f67257ef-4a85-42a5-a66c-6a3c0f494a94
Local pid:
pubs:155105
Deposit date:
2012-12-19

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