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Thermal concurrence mixing in a one-dimensional Ising model

Abstract:
The natural thermal entanglement in an Ising ring in an external magnetic field was studied. The interactions of two qubits via the Ising interaction in a magnetic field orthogonal to the z direction was analyzed. A theorem for the concurrence mixing due to occupation of the ground and the excited state was formulated. The variation of entanglement with the orientation of magnetic field was numerically considered.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevA.64.042302

Authors


Gunlycke, D More by this author
Kendon, VM More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
Journal:
PHYSICAL REVIEW A
Volume:
64
Issue:
4
Pages:
423021-423027
Publication date:
2001-10-05
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
URN:
uuid:999f6af5-1b55-421a-9000-3ab7b371b74f
Source identifiers:
156483
Local pid:
pubs:156483
Language:
English

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