We study the sound perturbation of a rotating acoustic black hole in the presence of a disclination. The radial part of the massless Klein-Gordon equation is written into a Heun form, and its analytical solution is ob...We study the sound perturbation of a rotating acoustic black hole in the presence of a disclination. The radial part of the massless Klein-Gordon equation is written into a Heun form, and its analytical solution is obtained. These solutions have an explicit dependence on the parameter of the disclination. We obtain the exact Hawking-Unruh radiation spectrum.展开更多
Massive scalar fields are considered in with a global monopole in f（R） gravity. The exact background is obtained and is given in terms of the Heun functions to study the Hawking radiation and the gravitational field...Massive scalar fields are considered in with a global monopole in f（R） gravity. The exact background is obtained and is given in terms of the Heun functions to study the Hawking radiation and the gravitational field produced by a Schwarzschild black hole solution of the radial part of the Klein-Gordon equation in this general Heun functions. We apply the properties of the general the resonant frequencies of scalar particles.展开更多
基金Supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico(140612/2014-9)
文摘We study the sound perturbation of a rotating acoustic black hole in the presence of a disclination. The radial part of the massless Klein-Gordon equation is written into a Heun form, and its analytical solution is obtained. These solutions have an explicit dependence on the parameter of the disclination. We obtain the exact Hawking-Unruh radiation spectrum.
基金funded by the Brazilian research agencies CNPq(research Project No.140612/2014-9)CAPES(PDSE Process No.88881.133092/2016-01)+1 种基金funded by the CNPq through the research Project No.150565/2016-0partially supported by the CNPq through the research Project No.304553/2010-7
文摘Massive scalar fields are considered in with a global monopole in f（R） gravity. The exact background is obtained and is given in terms of the Heun functions to study the Hawking radiation and the gravitational field produced by a Schwarzschild black hole solution of the radial part of the Klein-Gordon equation in this general Heun functions. We apply the properties of the general the resonant frequencies of scalar particles.
