A linearization scheme is proposed for the general Hamiltonian of an interacting fermion system, consisting of a mean-field approximation in which pairing and umklapp play dominant roles. A variety of models emerge, characterized by a hierarchy of spectrum-generating algebras and superalgebras, of which some are supersymmetric. The superconducting phase transition is shown to be related to supersymmetry breaking.

DYNAMIC SUPERALGEBRA AND SUPERSYMMETRY FOR A MANY-FERMION SYSTEM / Montorsi, Arianna; Rasetti, Mario; Solomon, A. I.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 59:(1987), pp. 2243-2246.

DYNAMIC SUPERALGEBRA AND SUPERSYMMETRY FOR A MANY-FERMION SYSTEM

MONTORSI, Arianna;RASETTI, Mario;
1987

Abstract

A linearization scheme is proposed for the general Hamiltonian of an interacting fermion system, consisting of a mean-field approximation in which pairing and umklapp play dominant roles. A variety of models emerge, characterized by a hierarchy of spectrum-generating algebras and superalgebras, of which some are supersymmetric. The superconducting phase transition is shown to be related to supersymmetry breaking.
1987
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1675793
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