0 Black Hole Formation in Bidimensional Dilaton Gravity Coupled to Scalar Matter Systems
نویسنده
چکیده
This work deals with the formation of black hole in bidimensional dilaton gravity coupled to scalar matter fields. We investigate two scalar matter systems, one described by a sixth power potential and the other defined with two scalar fields containing up to the fourth power in the fields. The topological solutions that appear in these cases allow the formation of black holes in the corresponding dilaton gravity models. PACS Numbers: 04.70.Bw; 11.27.+d This work is supported in part by funds provided by the U.S. Department of Energy (D.O.E.) under cooperative research agreement DE-FC02-94ER40818, by Conselho Nacional de Desenvolvimento Cient́ıfico e Tecnológico, CNPq, and Fundação Universitária José Bonifácio, FUJB, Brazil.
منابع مشابه
Scalar Hair Theorem for a Charged Spherical Black Hole
This paper shows that no scalar hair can exist for a spherically symmetric charged black hole. This is true for minimally as well as non-minimally coupled scalar fields. If, however, the scalar field is coupled nonminimally to the matter lagrangian also, nontrivial scalar hair may exist. One example of the latter may be found in dilaton gravity.
متن کاملr - qc / 9 80 30 19 v 3 1 1 A ug 1 99 8 No Scalar Hair Theorem for a Charged Spherical Black Hole
This paper consolidates the no scalar hair theorem for a charged spherically symmetric black hole in four dimensions in general relativity as well as in all scalar tensor theories, both minimally and nonminimally coupled, when the effective Newtonian constant of gravity is positive. However, there is an exception when the matter field itself is coupled to the scalar field, such as in dilaton gr...
متن کاملNo Scalar Hair Theorem for a Charged Spherical Black Hole
This paper consolidates the no scalar hair theorem for a charged spherically symmetric black hole in four dimensions in general relativity as well as in all scalar tensor theories, both minimally and nonminimally coupled, when the effective Newtonian constant of gravity is positive. However, there is an exception when the matter field itself is coupled to the scalar field, such as in dilaton gr...
متن کاملDilaton Gravity with a Non-minimally Coupled Scalar Field
We discuss the two-dimensional dilaton gravity with a scalar field as the source matter. The coupling between the gravity and the scalar, massless, field is presented in an unusual form. We work out two examples of these couplings, and solutions with black-hole behaviour are discussed and compared with those found in the literature.
متن کاملv 1 2 3 O ct 2 00 2 Horizons in 1 + 1 Dimensional Dilaton Gravity Coupled to Matter A
We study the local behaviour of static solutions of a general 1+1 dimensional dilaton gravity theory coupled to scalar fields and Abelian gauge fields near horizons. This type of model includes in particular reductions of higher dimensional theories invariant under a sufficiently large isometry group. The solution near the horizon can in general be obtained solving a system of integral equation...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000