Scalar hair
WebNext, we review no-scalar-hair theorems. In particular, we detail an influential theorem by Bekenstein and stress three key assumptions: (1) The type of scalar field equation; (2) the … Webwith a scalar field one needs a time-dependent scalar field with hair. Second, a naked singularity can be removed by a scalar field with radial profile only if h>0 everywhere. We will present below example where these conditions are met. We will find that indeed a disformal transformation (3.5) can remove the singularity from the geometry.
Scalar hair
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WebMar 11, 2014 · We present a family of solutions of Einstein's gravity minimally coupled to a complex, massive scalar field, describing asymptotically flat, spinning black holes with scalar hair and a regular horizon. These hairy black holes (HBHs) are supported by rotation and have no static limit. Webwith scalar-vacuumgeneral relativity, and an essential difference is the existence of a Gauss law for the former but not for the latter. In any case, due to their simplicity, it is quite natural that in testing the no-hair idea, scalar fields were one of the first types of “matter” considered. A set of no-go results – no-scalar-hair ...
WebJul 18, 2024 · In this paper, we study the dynamics of scalar hair around a Schwarzchild black hole. The scalar hair is sourced by the Gauss-Bonnet invariant with a linear … WebI love SINE QUA NON Salons! The reception was so nice and welcoming. My stylist, Joe, was amazing!! My hair looks so beautiful!! I was nervous with coloring because I have curly …
WebFeb 25, 2024 · Starting from an initial radially homogeneous configuration, a scalar cloud is accreted, which asymptotes to known stationary configurations over time. We study the cloud growth for different parameters including black hole spin, scalar field mass, and the scalar field density and angular momentum far from the black hole. WebAug 31, 2024 · There are a number of publications on relativistic objects dealing either with black holes or naked singularities in the center. Here we show that there exist static spherically symmetric solutions of Einstein equations with a strongly nonlinear scalar field, which allow the appearance of singularities of a new type (“spherical singularities”) …
WebA new no‐hair theorem is formulated which rules out a very large class of nonminimally coupled finite scalar dressing of an asymptotically flat, static, and spherically symmetric black hole. The proof is very simple and based on a covariant method for generating solutions for nonminimally coupled scalar fields starting from the minimally coupled …
WebApr 10, 2024 · It has been known that in the presence of a scalar hair there would be a distinct additional contribution to the first law of black hole thermodynamics. While it has … brewster let it coolWebJul 18, 2024 · In this paper, we study the dynamics of scalar hair around a Schwarzchild black hole. The scalar hair is sourced by the Gauss-Bonnet invariant with a linear coupling. We work perturbatively in the coupling constant and ignore the backreaction of the scalar hair and the Gauss-Bonnet invariant. We evolve the scalar field in the background of a … brewster leads the way chuggingtonWebMar 11, 2014 · We present a family of solutions of Einstein's gravity minimally coupled to a complex, massive scalar field, describing asymptotically flat, spinning black holes with scalar hair and a regular... county for menasha wiWebFeb 7, 2024 · the scalar hair is maintained by the in teraction with the spacetime curvature. One high curvature correction is the Gauss-Bonnet (GB) term and to avoid topological inv ariant behaviour the scalar ... brewster lane wilmington ncWebMar 20, 2024 · We show that, unlike vacuum general relativity, Einstein-scalar theories allow balanced static, neutral, asymptotically flat, double-black hole solutions, for scalar field models minimally coupled to gravity, with appropriate self-interactions. These are scalar hairy versions of the double-Schwarzschild (or Bach-Weyl) solution, but regular on and … county for menlo park caWebA linear coupling between a scalar field and the Gauss–Bonnet invariant is the only known interaction term between a scalar and the metric that: respects shift symmetry; does not lead to higher order equations; inevitably introduces black hole hair in asymptotically flat, 4-dimensional spacetimes. county for menomonee falls wiWebA new no‐hair theorem is formulated which rules out a very large class of nonminimally coupled finite scalar dressing of an asymptotically flat, static, and spherically symmetric … brewster lane wayland massachusetts