Particle-number projection and the density functional theory
- 20 November 2007
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 76 (5) , 054315
- https://doi.org/10.1103/physrevc.76.054315
Abstract
In the framework of the density functional theory for superconductors, we study the restoration of the particle-number symmetry by means of the projection technique. Conceptual problems are outlined and numerical difficulties are discussed. Both are related to the fact that neither the many-body Hamiltonian nor the wave function of the system appear explicitly in the density functional theory. Similar obstacles are encountered in self-consistent theories utilizing density-dependent effective interactions.Keywords
All Related Versions
This publication has 41 references indexed in Scilit:
- Ab initiotheory of superconductivity. I. Density functional formalism and approximate functionalsPhysical Review B, 2005
- Density functional theory for superconductorsInternational Journal of Quantum Chemistry, 2004
- Density-Functional Theory for SuperconductorsPhysical Review Letters, 1988
- The Nuclear Many-Body ProblemPublished by Springer Nature ,1980
- Universal variational functionals of electron densities, first-order density matrices, and natural spin-orbitals and solution of the v -representability problemProceedings of the National Academy of Sciences, 1979
- Density-Matrix Expansion for an Effective Nuclear HamiltonianPhysical Review C, 1972
- Hartree-Fock Calculations with Skyrme's Interaction. I. Spherical NucleiPhysical Review C, 1972
- Structure of Finite Nuclei in the Local-Density ApproximationPhysical Review C, 1970
- Self-Consistent Equations Including Exchange and Correlation EffectsPhysical Review B, 1965
- Inhomogeneous Electron GasPhysical Review B, 1964