Some global properties of the attractive Hubbard model in the superconducting phase: The T-matrix approximation in two dimensions

Journal of Physics Condensed Matter

Volumn 9, Issue 9, 1997, Pages

  Schafroth, S ^a   Rodriguez Nunez J J ^b   Beck, H ^c  

^a UNIVERSITY OF ZURICH   (Switzerland)

^b FLUMINENSE FEDERAL UNIVERSITY   (Brazil)

^c UNIVERSITY OF NEUCHÂTEL   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

APPROXIMATION THEORY; CALCULATIONS; CARRIER CONCENTRATION; FOURIER TRANSFORMS; GREEN'S FUNCTION; MATHEMATICAL MODELS; MATRIX ALGEBRA; SUPERCONDUCTIVITY;

ATTRACTIVE HUBBARD MODEL; SUPERCONDUCTING PHASE; TWO DIMENSIONS;

PHASE DIAGRAMS;

EID: 0031550719     PISSN: 09538984     EISSN: None     Source Type: Journal    
DOI: 10.1088/0953-8984/9/9/001     Document Type: Article

References (26)

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25. Schafroth S and Rodríguez-Núñez J J 1997 Z. Phys. B at press In this work we have included fluctuations in the off-diagonal self-energy by approximating the T-matrix by U only in the off-diagonal self-energy.
26. Rodríguez-Núñez J J and Schafroth S 1997 to be submitted