Asymmetry of Hawking radiation of Dirac particles in a charged Vaidya-de Sitter black hole

摘要

The Hawking radiation of Dirac particles in a charged Vaidya-de Sitter black hole is investigated by using the method of generalized tortoise coordinate transformation. It is shown that the Hawking radiation of Dirac particles does not exist for P-2, Q(1) components, but for P-2, Q(1) components it does. Both the location and the temperature of the event horizon change with time. The thermal radiation spectrum of Dirac particles is the same as that of Klein-Gordon particles. [References: 22]