The magnetisation and spin correlation functions of the $X- Y$ model are analysed exact1ywhen the system is subjected to a local perturbation of the magnetic field in the $z$-direction. When such a perturbation is removed, these quantities approach their equilibrium values asymptotically as (time) $\to\infty$
Dynamics of a local perturbation in the X--Y model (I) / D., Abraham; E., Barouch; Gallavotti, Giovanni; A., Martin Lof. - In: STUDIES IN APPLIED MATHEMATICS. - ISSN 0022-2526. - STAMPA. - 50:(1971), pp. 121-131.
Dynamics of a local perturbation in the X--Y model (I)
GALLAVOTTI, Giovanni;
1971
Abstract
The magnetisation and spin correlation functions of the $X- Y$ model are analysed exact1ywhen the system is subjected to a local perturbation of the magnetic field in the $z$-direction. When such a perturbation is removed, these quantities approach their equilibrium values asymptotically as (time) $\to\infty$File allegati a questo prodotto
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