Vacuum polarization of the electromagnet
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V. P. Frolov; A. I. Zelnikov
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Article
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1986
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John Wiley and Sons
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English
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Let a scalar charged field with the Lagrangian interact with the gravitational field described by the liobertson-Walker mctric. Here, F(p \* p) is an arbitrary self-coupling function. Proposition 2. The U(r)-gaugc symmetry 01 the ficld (2) is spoiitancously hrokcn if I ) the evolution of the univer