A local and physical definition of a black hole and its horizon is given by means of Hawking radiation and null hypersurface. There exists thermal radiation of gravitons from the event horizon of Vaidya black hole. It...A local and physical definition of a black hole and its horizon is given by means of Hawking radiation and null hypersurface. There exists thermal radiation of gravitons from the event horizon of Vaidya black hole. It is pointed out that the presence of thermal gravitons is in contradiction with Einstein equation.展开更多
文摘A local and physical definition of a black hole and its horizon is given by means of Hawking radiation and null hypersurface. There exists thermal radiation of gravitons from the event horizon of Vaidya black hole. It is pointed out that the presence of thermal gravitons is in contradiction with Einstein equation.