چکیده

An important question regarding black holes properties is to know if they can support “hairs”. While this is famously forbidden in general relativity, in particular for scalar fields, by the so-called no-hair theorems, hairy black holes have been shown to exist in several classes of scalar-tensor theories of gravity. In this talk, I will show the existence of scalarized black holes in teleparallel scalar-torsion theories of gravity which is a formulation of gravity where the curvature is zero but the torsion tensor is non-vanishing. I will then present exact solutions for certain choices of couplings between a scalar field and the torsion tensor of a teleparallel connection and certain scalar field potentials, and thus proof the existence of scalarized black holes in these theories. On the other hand, I will also show that it is possible to establish no-scalar-hair theorems similar to what is known in general relativity for other choices of these functions.

کليدواژه ها

black holes, teleparallel gravity, torsion, scalarised black holes

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Sebastian bahamonde , 1400 , Scalarized Black Holes in Teleparallel Gravity , اولین کنفرانس بین المللی هولوگرافی و کاربردهای آن