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

Autor:	M. J. Rozenberg, D. R. Grempel
Rok vydání:	1998
Předmět:	Physics Range (particle radiation) Condensed matter physics Quantum Monte Carlo Phase (matter) Quantum critical point Dynamics (mechanics) General Physics and Astronomy Ising model Kondo model Condensed Matter::Disordered Systems and Neural Networks Critical field
Zdroj:	Physical Review Letters. 81:2550-2553
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.81.2550
Popis:	We use quantum Monte Carlo methods and various analytic approximations to study the infinite-range 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 that, at the quantum critical point, there exists an equivalence between the long-time behavior of this model and that of the single-impurity Kondo model. Our predictions for the long-time dynamics of the model are in good agreement with experimental results on ${\mathrm{LiHo}}_{0.167}{\mathrm{Y}}_{0.833}{\mathrm{F}}_{4}$.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8783d47758e2d9f0a7b94b6979560885 https://doi.org/10.1103/physrevlett.81.2550 Zobrazit plný text záznamu