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Quasipinning and its relevance for N-fermion quantum states

Abstract:

Fermionic natural occupation numbers (NON) do not only obey Pauli's famous exclusion principle, but are even further restricted to a polytope by the generalized Pauli constraints, conditions which follow from the fermionic exchange statistics. Whenever given NON are pinned to the polytope's boundary, the corresponding N-fermion quantum state |ΨN simplifies due to a selection rule. We show analytically and numerically for the most relevant cases that this rule is stable for NON close to the bo...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevA.91.022105

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review A Journal website
Volume:
91
Issue:
2
Publication date:
2015-02-01
Acceptance date:
2015-01-26
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
Source identifiers:
538225
Keywords:
Pubs id:
pubs:538225
UUID:
uuid:3399ff80-b6eb-4eb2-93eb-a0f88c0cb0db
Local pid:
pubs:538225
Deposit date:
2017-04-01

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