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Vacuum Polarization in Cosmic-string and Global-monopole Backgroundстатья
- Авторы: Grats Y., Spirin P.
- Сборник: Proceedings, 18th Lomonosov Conference on Elementary Particle Physics
- Год издания: 2019
- Место издания: World Scientific Pub Singapore, Netherlands
- Первая страница: 388
- Последняя страница: 391
- DOI: 10.1142/9789811202339_0071
- Аннотация: We analyze the gravity-induced effects associated with a massless scalar field in a higher-dimensional spacetime being the tensor product of (d – n)-dimensional Minkowski space and n-dimensional spherically/cylindrically-symmetric space with a solid/planar angle deficit. In particular, we revisit the computation of the vacuum polarization effects for a non-minimally coupled massless scalar field in the spacetime of a straight cosmic string. We compute the renormalized vacuum expectation value of the field square and the renormalized vacuum averaged of the scalar-field’s energy-momentum tensor. The explicit dependence of the results upon the dimensionalities of both the bulk and conical submanifold and upon the coupling constant to the curvature is discussed
- Добавил в систему: Спирин Павел Алексеевич