No hair theorem for scalar field models with non-minimal derivative coupling around a reflecting star

Document Type : Full length research Paper

Authors

Department of Physics, College of Science, University of Tehran

Abstract

Studying scalar field around black holes in the context of the no-hair theorem is an important
and interesting subject. We investigate no scalar hair theorem for an asymptotically flat
horizon-less neutral compact reflecting star. A reflecting star is an object with a reflecting
boundary (instead of the absorbing event horizon) on which the scalar field or its derivative
are zero . We consider a non-minimal kinetic coupling model such that in the kinetic part, the
scalar field is non-minimally coupled to the Einstein tensor. We show that in contrast to the
black hole cases, there is no non-trivial hair in this problem.

Keywords

Main Subjects


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