Pseudo-fermion formalism applied to nonequilibrium Kondo-type problems

Omar Morandi (1, 2) , Paul-Antoine Hervieux (1) , Giovanni Manfredi (1)

1 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg
2 CALVI - Scientific computation and visualization

A straightforward limit procedure is developed for evaluating the expectation value of a generic many-particle operator defined in the Abrikosov-Coleman's pseudo fermion formalism. It can be useful for the study of nonequilibrium Kondo-type problems.

Mots clés: Abrikosov-Coleman's pseudo-fermion formalism; Kondo-type problems

Domaines: Physique Quantique [quant-ph]; Autre [cond-mat.other]

Omar Morandi, Paul-Antoine Hervieux, Giovanni Manfredi. Pseudo-fermion formalism applied to nonequilibrium Kondo-type problems. Il Nuovo Cimento C, 2010, 33, pp.173. ⟨10.1393/ncc/i2010-10577-1⟩. ⟨hal-00596705⟩