Abstract:
Conditions of the existence of long range order and bounds on critical temperatures
are found for quantum models of rotators, quadrupoles and ferroelectrics. The method
used is based on combining infrared bounds with the technique of the Wiener integrals.
Citation:
L. A. Pastur, B. A. Khoruzhenko, “Phase transitions in quantum models of rotators and ferroelectrics”, TMF, 73:1 (1987), 111–124; Theoret. and Math. Phys., 73:1 (1987), 1094–1104
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