Stability of an interaction against spontaneous production of an average boson field
Abstract
Concrete examples are used to illustrate how one can investigate the stability of an interaction
against the spontaneous production of a nonvanishing vacuum average boson field (scalar
or vector). For gauge fields (electrodynamics and the Yang–Mills field) it is shown that the
necessary stability is ensured by gauge invarianee.
Submission history
[v1] 1973