Archivio Istituzionale della RicercaA 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.
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https://hdl.handle.net/11583/1675793
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