Published December 1, 1988
| Version v1
Journal article
Variational ground state of a system with strong electron-phonon interaction
Creators
- 1. Center of Theoretical Physics, Chinese Center of Advanced Science Technology (World Laboratory), Beijing, People's Republic of China 200030, People's Republic of China
Description
A new variational ground state of a system with strong electron-phonon interaction has been proposed in which the electron subsystem is in a superconducting pairing state and the phonon subsystem is in a two-phonon coherent state. We have shown that such a variational state is necessary for obtaining reasonable magnitudes for the energy and for the effective mass of the charge carriers
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 38
- Journal Issue
- 16
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 11865-11868
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20024783
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CHARGE CARRIERS; COHERENT SCATTERING; ELECTRON-PHONON COUPLING; ENERGY GAP; GROUND STATES; MATHEMATICAL MODELS; POLARONS; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; VARIATIONAL METHODS
- Descriptors DEC
- COUPLING; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ENERGY LEVELS; PHYSICAL PROPERTIES; QUASI PARTICLES; SCATTERING; THERMODYNAMIC PROPERTIES