Physical Review Letters

Quantal Ising Liquid

Richard M. Stratt

Published Oct 1, 1984• 32 citations

Abstract

An example is presented of a model of an amorphous quantum mechanical system, a liquid of quantal Ising spins, which can be solved exactly within certain many-body theories. Analytical solutions of the model in mean-field theory are shown to reveal a decrease in the extent of the ferromagnetic region (compared to an equivalent classical system) and the occurrence of some degree of quantum localization. Both phenomena are analyzed as a competition between quantum mechanics and the condensed phase.

DOI: 10.1103/physrevlett.53.1305

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