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Artigo Revisado por pares
BIBTEX RIS

Dynamics of the one-dimensional isotropic XY-model

1980; Elsevier BV; Volume: 15-18; Linguagem: Inglês

10.1016/0304-8853(80)90891-4

ISSN

1873-4766

Autores

L.L. Gonçalves, H.B. Cruz,

Tópico(s)

Quantum Chromodynamics and Particle Interactions

Resumo

The boundary effects on the time-dependent correlation 〈Szj(t)Szl(0)〉 is studied at the extreme temperature limits, T = 0 and T = ∞. The bulk correlation is obtained in these cases and the boundary effects discussed. It is also calculated the bulk correlation 〈Sxj(t)Sxj(0)〉 at T = ∞ using a new approach. The calculation is made by using a new combination of fermion operators which avoids the block Toeplitz determinants.

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