English

On symmetry inheritance of nonminimally coupled scalar fields

General Relativity and Quantum Cosmology 2018-02-28 v3 High Energy Physics - Theory

Abstract

We present the first symmetry inheritance analysis of fields nonminimally coupled to gravity. In this work we are focused on the real scalar field ϕ\phi with nonminimal coupling of the form ξϕ2R\xi\phi^2 R. Possible cases of the symmetry noninheriting fields are constrained by the properties of the Ricci tensor and the scalar potential. Examples of such spacetimes can be found among those which are "dressed" with the stealth scalar field, a nontrivial scalar field configuration with the vanishing energy-momentum tensor. We classify the scalar field potentials which allow the symmetry noninheriting stealth field configurations on top of the exact solutions of the Einstein's gravitational field equation with the cosmological constant.

Keywords

Cite

@article{arxiv.1709.07456,
  title  = {On symmetry inheritance of nonminimally coupled scalar fields},
  author = {Irena Barjašić and Ivica Smolić},
  journal= {arXiv preprint arXiv:1709.07456},
  year   = {2018}
}

Comments

16 pages; slightly revised, published version (expanded discussion, several references added)