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Title

Integrable Richardson-Gaudin models in mesoscopic physics

AuthorsDukelsky, Jorge
Issue Date2011
PublisherInstitute of Physics Publishing
CitationJournal of Physics: Conference Series 338: 012023 (2011)
AbstractThe exact solution of the SU(2) pairing Hamiltonian with non-degenerate single particle orbits was introduced by Richardson in the early sixties. The exact solution passed almost unnoticed till was recovered in the last decade in an effort to describe the disappearance of superconductivity in ultrasmall superconducting grains. Since then it has been extended to several families integrable models, called the Richardson-Gaudin (RG) models. In particular, the rational family of integrable RG models has been widely applied to mesoscopic systems like small grains, quantum dots and nuclear systems where finite size effects play an important role. We will first introduce these families of integrable models and then we will describe the first applications of the hyperbolic family to spinless cold fermionic atonies in two dimensional lattices and to heavy nuclei.
URIhttp://hdl.handle.net/10261/66232
DOI10.1088/1742-6596/338/1/012023
ISSN1742-6588
Appears in Collections:(CFMAC-IEM) Artículos
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