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Exact four-spinon dynamical correlation function

We discuss some properties of the exact four-spinon dynamical correlation function in the antiferromagnetic spin 1/2 XXX-model the expression of which we derived recently. We show that the region in which it is not identically zero is different from and larger than the spin-wave continuum. We discus...

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Detalles Bibliográficos
Autores principales: Abada, A, Bougourzi, A H, Si-Lakhal, B, Seba, S
Lenguaje:eng
Publicado: 1998
Materias:
Acceso en línea:http://cds.cern.ch/record/347069