Monte carlo studies of the ising spin-glass in a transverse field

Pik Yin Lai; Y. Y. Goldschmidt

doi:10.1209/0295-5075/13/4/001

Monte carlo studies of the ising spin-glass in a transverse field

Pik Yin Lai, Y. Y. Goldschmidt

Department of Physics

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15 Scopus citations

Abstract

The infmite-range Ising spin-glass in the presence of a transverse field is studied by Monte Carlo simulations. The overlap probability distribution P(q) is defined and calculated for the present quantum case. The P(q) in the spin-glass phase has a long tail extended down to q = 0 qualitatively similar to the classical Sherrington-Kirkpatrick model. The phase boundary of the glass transition temperature vs. the transverse field is obtained. Our results for the phase diagram agree with our recent replica symmetry-breaking solution but disagree with the results of Yokata and of Ray et al.

Original language	English
Pages (from-to)	289-294
Number of pages	6
Journal	EPL
Volume	13
Issue number	4
DOIs	https://doi.org/10.1209/0295-5075/13/4/001
State	Published - 15 Oct 1990

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abstract = "The infmite-range Ising spin-glass in the presence of a transverse field is studied by Monte Carlo simulations. The overlap probability distribution P(q) is defined and calculated for the present quantum case. The P(q) in the spin-glass phase has a long tail extended down to q = 0 qualitatively similar to the classical Sherrington-Kirkpatrick model. The phase boundary of the glass transition temperature vs. the transverse field is obtained. Our results for the phase diagram agree with our recent replica symmetry-breaking solution but disagree with the results of Yokata and of Ray et al.",

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AU - Lai, Pik Yin

AU - Goldschmidt, Y. Y.

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N2 - The infmite-range Ising spin-glass in the presence of a transverse field is studied by Monte Carlo simulations. The overlap probability distribution P(q) is defined and calculated for the present quantum case. The P(q) in the spin-glass phase has a long tail extended down to q = 0 qualitatively similar to the classical Sherrington-Kirkpatrick model. The phase boundary of the glass transition temperature vs. the transverse field is obtained. Our results for the phase diagram agree with our recent replica symmetry-breaking solution but disagree with the results of Yokata and of Ray et al.

AB - The infmite-range Ising spin-glass in the presence of a transverse field is studied by Monte Carlo simulations. The overlap probability distribution P(q) is defined and calculated for the present quantum case. The P(q) in the spin-glass phase has a long tail extended down to q = 0 qualitatively similar to the classical Sherrington-Kirkpatrick model. The phase boundary of the glass transition temperature vs. the transverse field is obtained. Our results for the phase diagram agree with our recent replica symmetry-breaking solution but disagree with the results of Yokata and of Ray et al.

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Monte carlo studies of the ising spin-glass in a transverse field

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