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Relating correlation measures: The importance of the energy gap

Abstract:

The concept of correlation is central to all approaches that attempt the description of many-body effects in electronic systems. Multipartite correlation is a quantum information theoretical property that is attributed to quantum states independent of the underlying physics. In quantum chemistry, however, the correlation energy (the energy not seized by the Hartree-Fock ansatz) plays a more prominent role. We show that these two different viewpoints on electron correlation are closely related...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1103/PhysRevA.95.032507

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Department:
Oxford, MPLS, Physics, Atomic & Laser Physics
Role:
Author
Oxford Martin Programme on Bio-Inspired Quantum Technologies More from this funder
Publisher:
American Institute of Physics Publisher's website
Journal:
Physical Review A: Atomic, Molecular and Optical Physics Journal website
Volume:
95
Issue:
3
Publication date:
2017-03-05
Acceptance date:
2017-03-07
DOI:
ISSN:
1094-1622
Pubs id:
pubs:687274
URN:
uri:0585292b-e70e-4a2d-838b-de76033044a6
UUID:
uuid:0585292b-e70e-4a2d-838b-de76033044a6
Local pid:
pubs:687274
Paper number:
032507
Keywords:

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