Physics – Condensed Matter
Scientific paper
1994-05-05
Physics
Condensed Matter
pp.13, LATEX
Scientific paper
A new pairing theory for many-fermion systems is obtained via the Dirac supersymmetry framework recently introduced to describe Dirac particles in external potentials. It is shown that the standard Bogoliubov-Valatin canonical transformation treatment of the quasi-particle BCS singlet pairing mechanism naturally falls within this framework. Straightforward generalizations in which the fermions can be ascribed $ \nu$ {\it components} are shown to lead to enhanced gap energies and critical temperatures as in the case of cuprate superconductors without invoking a stronger electron-boson coupling. The new $T_{c}^{max}$ limit is $T_c^{max} = \nu T_c^{BCS}$, with $T_c^{BCS} \approx 40^0 K$.
de Llano M.
Méndez-Moreno Rosa María
Moreno Manuel
Orozco Susana
Ortíz M. A.
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