NEW DIAGRAMMATIC METHOD FOR QUANTUM-FIELD THEORY IN THE HEISENBERG PICTURE .1. 2-DIMENSIONAL QUANTUM-GRAVITY

被引：11
作者：
ABE, M
NAKANISHI, N
机构：
来源：
PROGRESS OF THEORETICAL PHYSICS | 1993年 / 90卷 / 05期
关键词：
D O I：
10.1143/PTP.90.1091
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Corresponding to the Feynman rules in the interaction picture, new diagrammatic rules in the Heisenberg picture are proposed in the framework of the covariant operator formalism of quantum field theory. It is shown that the exact expressions for the Wightman functions of two-dimensional quantum gravity in the de Donder gauge, presented previously, are precisely reproduced by this diagrammatic method. Extension to other models is briefly mentioned.
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页码：1091 / 1109
页数：19
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