Published December 1, 1991
| Version v1
Journal article
Variational treatment for the bipolaronic system
Creators
- 1. Department of Applied Physics, Shanghai Jiao Tong University, Shanghai 200030 (China)
Description
We reconsider the bipolaronic system by introducing the squeezed-polaron model or two-phonon coherent state, and obtain more satisfactory results than before with respect to lowering the system's ground-state energy and extending the singlet superconducting phase in the phase diagram of such a bipolaronic system. The necessity and the limit of using our variational treatment to this bipolaronic system are also discussed
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 44
- Journal Issue
- 22
- Series
- Phys. Rev., B Condens. Matter.
- Journal Page Range
- 12275-12279
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23077638
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ELECTRON-ELECTRON INTERACTIONS; ELECTRON-PHONON COUPLING; GROUND STATES; HAMILTONIANS; PHASE DIAGRAMS; POLARONS; SUPERCONDUCTIVITY; VARIATIONAL METHODS
- Descriptors DEC
- COUPLING; DIAGRAMS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ENERGY LEVELS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MATHEMATICAL OPERATORS; PARTICLE INTERACTIONS; PHYSICAL PROPERTIES; QUANTUM OPERATORS; QUASI PARTICLES