Bounds on correlation functions of quantum rotators

被引：0
|
作者：
Bolina, O [1 ]
Parreira, JR
机构：
[1] Univ Calif Davis, Dept Math, Davis, CA 95616 USA
[2] Inst Estudos Avancados, BR-04602000 Sao Paulo, Brazil
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 1998年 / 12卷 / 27-28期
关键词：
D O I：
10.1142/S0217979298001630
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 charges correlation function. We also discuss the possible existence of a Kosterlitz-Thouless phase for the quantum rotators in the Villain approximation.
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页码：2803 / 2808
页数：6
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