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

Pik Yin Lai, Y. Y. Goldschmidt

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


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 languageEnglish
Pages (from-to)289-294
Number of pages6
Issue number4
StatePublished - 15 Oct 1990


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