Abstract
Hawking evaporation of Klein-Gordon and Dirac particles in a non-stationary Kerr-Newman space-time is investigated by using a method of generalized tortoise coordinate transformation. The location and the temperature of the event horizon of a non-stationary Kerr-Newman black hole are derived. It is shown that the temperature and the shape of the event horizon depend not only on the time but also on the angle. However, the Fermionic spectrum of Dirac particles displays a new spin-rotation coupling effect which is absent from that of Bosonic distribution of scalar particles. The character of this effect is its obvious dependence on different helicity states of particles spin-1/2.
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Wu, S.Q., Cai, X. Hawking Radiation of a Non-Stationary Kerr-Newman Black Hole: Spin-Rotation Coupling Effect. General Relativity and Gravitation 34, 605–617 (2002). https://doi.org/10.1023/A:1015929926316
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DOI: https://doi.org/10.1023/A:1015929926316