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Effect of Entanglement on Geometric Phase for Multi-Qubit States

Abstract:

When a multi-qubit state evolves under local unitaries it may obtain a geometric phase, a feature dependent on the geometry of the state projective Hilbert space. A correction term to this geometric phase, in addition to the local subsystem phases, may appear from correlations between the subsystems. We find that this correction term can be characterized completely either by the entanglement or by the classical correlations for several classes of entangled state. States belonging to the forme...

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Publication status:
Published

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Publisher copy:
10.1142/S1230161209000244

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Volume:
16
Issue:
2-3
Pages:
305-323
Host title:
OPEN SYSTEMS and INFORMATION DYNAMICS
Publication date:
2009-09-01
DOI:
EISSN:
1793-7191
ISSN:
1230-1612
Source identifiers:
158539
Pubs id:
pubs:158539
UUID:
uuid:1cb43cbe-8869-46b4-a96f-497a860530d8
Local pid:
pubs:158539
Deposit date:
2012-12-19

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