COVARIANCE IN QUANTUM FIELD THEORY

被引：10

作者：

TAKAHASHI, Y

SHIMODAIRA, H

机构：

[1] theoretical Physics Institute, Department of Physics, University of Alberta, Edmonton

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1969年 / 62卷 / 01期

关键词：

D O I：

10.1007/BF02731807

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We make use of the Poincaré commutators for the generators of the inhomogeneous Lorentz transformation to prove that the generators are unique when field operators are given and form an irreducible ring. We further prove, under the assumptions a) the vacuum is nondegenerate, b) there is no massless particle, and c) there exists the symmetric energy-momentum tensor, that only the generators from which the vacuum expectation value is subtracted satisfy the Poincaré commutators. The self-stress of a single particle is also discussed from the viewpoint of the Poincaré commutators, and the generalized Pais-Epstein formula of a single particle in motion is derived in a simple manner. © 1969 Società Italiana di Fisica.

引用

页码：255 / +

页数：1

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