Bounds on Correlation Functions of Quantum Rotators

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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.
Latex 7 pages

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Mathematical Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/58330

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math-ph/9905004
 http://arxiv.org/abs/math-ph/9905004

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arXiv