Dynamics of the Ising Spin-Glass Model in a Transverse Field

Дата и время публикации : 1998-02-10T16:14:24Z

Авторы публикации и институты :
M. J. Rozenberg
D. R. Grempel

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 4 pages Latex. 2 postscript figures
Первичная категория: cond-mat.dis-nn

Все категории : cond-mat.dis-nn

Краткий обзор статьи: We use quantum Monte Carlo methods and various analytic approximations to solve the Ising spin-glass model in a transverse field in the disordered phase. We focus on the behavior of the frequency dependent susceptibility of the system above and below the critical field . We establish the existence of an exact equivalence between this problem and the single-impurity Kondo model at the quantum critical point. Our predictions for the long-time dynamics of the model are in good agreement with experimental results on $LiHo_{0.167}Y_{0.833}F_4$.

Category: Physics