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Physical review. B, Condensed matter

Generalized quantum Mattis spin glasses withp-spin interactions

Yu‐qiang Ma, Chang-De Gong

Published Sep 1, 1994• 1 citation
Publisher

Abstract

A generalization of the p-spin-interaction quantum multicomponent Mattis model in a transverse field is investigated by use of the Suzuki-Trotter approach with the thermodynamic perturbation theory. The phase diagram is obtained in the limit p\ensuremath{\rightarrow}\ensuremath{\infty}, and the effects of quantum fluctuations on the first-order phase transitions separating the disordered phase from the ordered phases are discussed. We find that paramagnetic phase is characterized by transverse ordering, whereas the ordered phases are not affected by the quantum fluctuations.

DOI
10.1103/physrevb.50.7151

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