Difficulties in a Kind of Averaging Procedure for Constructing Gauge-invariant Operators out of Gauge-variant Ones

Wei-Min Sun; Xiang-Song Chen; Fan Wang

doi:10.1016/S0370-2693(00)00562-1

paper

Difficulties in a Kind of Averaging Procedure for Constructing Gauge-invariant Operators out of Gauge-variant Ones

arXiv:hep-th/0005060 · doi:10.1016/S0370-2693(00)00562-1

Abstract

We prove that a kind of averaging procedure for constructing gauge-invariant operators(or functionals) out of gauge-variant ones is erroneous and inapplicable for a large class of operators(or functionals).

3 pages, revtex

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Some Problems Concerning Interchange of Order of Integration in Functional Integral Formalism of U(1) Gauge Field Theories