Published October 1, 2010
| Version v1
Journal article
Density-matrix functionals for pairing in mesoscopic superconductors
Creators
- 1. GANIL, CEA/DSM-CNRS/IN2P3, BP 55027, 14076 Caen Cedex 5 (France)
Description
A functional theory based on single-particle occupation numbers is developed for pairing. This functional, that generalizes the Bardeen-Cooper-Schrieffer approach, directly incorporates corrections due to particle number conservation. The functional is benchmarked with the pairing Hamiltonian and reproduces perfectly the energy for any particle number and coupling.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevB.82.144509;
- arXiv
- arXiv:1003.2860v2;
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 82
- Journal Issue
- 14
- Journal Page Range
- p. 144509-144509.5
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42028769
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BCS THEORY; CORRECTIONS; COUPLING; DENSITY MATRIX; FUNCTIONALS; HAMILTONIANS; PARTICLES; SUPERCONDUCTORS
- Descriptors DEC
- FUNCTIONS; MATHEMATICAL OPERATORS; MATRICES; QUANTUM OPERATORS
Optional Information
- Notes
- (c) 2010 The American Physical Society