Exactly solvable protonneutron pairing hamiltonians and quartet correlations

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Exactly solvable models have played an important role in helping to elucidate the physics of strongly correlated systems. Recently, we have extended the Richardson-Gaudin (RG) models of SU(2) like particle pairing to higher rank algebras. In particular, we will discuss here the SO(8) RG model of pro...

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Detalles Bibliográficos
Autores principales: Dukelsky, J., Errea, B., Lerma, H.S., Dussel, G.G., Esebbag, C., Sandulescu, N.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02183013_v17_n10_p2155_Dukelsky
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Exactly solvable models have played an important role in helping to elucidate the physics of strongly correlated systems. Recently, we have extended the Richardson-Gaudin (RG) models of SU(2) like particle pairing to higher rank algebras. In particular, we will discuss here the SO(8) RG model of proton-neutron pairing as a model of strong quartet correlations. The failure of proton-neutron BCS suggests that new approaches have to be developed to account for them. © 2008 World Scientific Publishing Company.

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