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Bounds on Correlation Functions of Quantum Rotators
Published Web Location
https://arxiv.org/pdf/math-ph/9905004.pdfNo data is associated with this publication.
Abstract
We derive a McBryan-Spencer bound to the correlation function of a one-dimensional array of quantum rotators in the Villain approximation of the cosine interaction. We obtain the partition function of the system in the gas representation and establish a lower bound on the external charge correlation function. We also discuss the possible existence of a Kosterlitz-Thouless phase for the quantum rotator in the Villain approximation.