Published 1979
| Version v1
Miscellaneous
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Single particle Green's functions calculation of the electrical conductivity of strong correlated systems
- 1. Massachusetts Inst. of Tech., Cambridge (USA)
Description
A calculation of the electrical conductivity for Hubbard materials is presented which is valid when U/t >> 1 (U being the Coulomb repulsion and t the nearest neighbor hopping energy) for arbitrary electron concentration and temperature. The derivation emploies the single particle Green's functions with real and imaginary times instead of the usual two-particle real time Green's function. The result is compared with the experimental data available for some organic charge transfer salts
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Apresentamos um calculo da condutividade eletrica para 'materiais de Hubbard' valido quando U/t >> 1 (U sendo a repulsao Coulombiana, e t a energia de transferencia para vizinhos proximos) para quaisquer concentracao eletronica e temperatura. A deducao emprega as funcoes de Green com tempos real e imaginario, em vez do metodo usual que emprega a funcao de Green de duas particulas. O resultado e comparado com dados experimentais disponiveis para alguns sais organicos com transferencia de cargaFiles
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Additional details
Publishing Information
- Imprint Pagination
- 24 p.
- Report number
- INIS-mf--5231
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 10481151
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANNIHILATION OPERATORS; BAND THEORY; COULOMB FIELD; CREATION OPERATORS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRON CORRELATION; ELECTRON DENSITY; ELECTRON TEMPERATURE; FERMI LEVEL; GREEN FUNCTION; MANY-BODY PROBLEM; SECOND QUANTIZATION; SINGLE-PARTICLE MODEL; TIME DEPENDENCE
- Descriptors DEC
- CORRELATIONS; ELECTRIC FIELDS; ELECTRICAL PROPERTIES; ENERGY LEVELS; FUNCTIONS; MATHEMATICAL OPERATORS; PHYSICAL PROPERTIES; QUANTUM OPERATORS