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Krechet, V. G.; Oshurko, V. B.; Lodi, M. N.
Russian physics journal, 12/2016, Letnik: 59, Številka: 8Journal Article
A gravitational interaction of a scalar field with conformal coupling n R 6 φ 2 (n = const) is considered within the framework of the affine-metric theory of gravitation, with the interaction with torsion and nonmetricity taken into account. It is shown that for different values of the constant n different forms of nonlinearities are induced in the scalar field and, in particular, for n = –1 a nonlinearity corresponding to the potential of the axion field is induced. Possible astrophysical consequences of such an effect are considered.
