Ising spin glass in a transverse field: Replica-symmetry-breaking solution

Yadin Y. Goldschmidt, Pik Yin Lai

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The replica-symmetry-breaking (RSB) solution of the infinite-range Ising spin glass in the presence of a transverse field is obtained. The quenched free energy and the phase boundary of the glass transition temperature versus the transverse field are calculated at first-step RSB without using the static approximation. We demonstrate that replica symmetry (RS) has to be broken in the spin-glass phase by comparing the free energies of the RSB and RS solutions. No evidence is found to support an intermediate spin-glass phase with replica symmetry.

Original languageEnglish
Pages (from-to)2467-2470
Number of pages4
JournalPhysical Review Letters
Issue number21
StatePublished - 1990


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