Time-dependent functional theory for superconductors
Abstract
We develop a Keldysh-Eliashberg-type formalism based on a functional theory for strongly correlated inhomogeneous superconductors subject to time-dependent external forces on the ions, four-vector, and pairing potentials. This theory incorporates exchange-correlation effects including a self-consistent treatment of the electromagnetic vector field as well as the ion motion on equal footing. Thus our theory not only contains but also goes beyond the scope of a recently published time-dependent density-functional theory for superconductors.
- Publication:
-
Physical Review B
- Pub Date:
- September 1995
- DOI:
- 10.1103/PhysRevB.52.6769
- Bibcode:
- 1995PhRvB..52.6769R
- Keywords:
-
- 74.20.Fg;
- 71.27.+a;
- BCS theory and its development;
- Strongly correlated electron systems;
- heavy fermions