Quantum radiation of general nonstationary black holes
Abstract
Quantum radiation of general nonstationary black holes is investigated by using the method of generalized tortoise-coordinate transformation (GTT). It is shown in general that the temperature and the shape of the event horizon of this kind of black holes depend on time and angle. Further, we find that the chemical potential in the thermal-radiation spectrum is equal to the highest energy of the negative-energy state of particles in nonthermal radiation for general nonstationary black holes.
- Publication:
-
EPL (Europhysics Letters)
- Pub Date:
- February 2009
- DOI:
- 10.1209/0295-5075/85/30007
- arXiv:
- arXiv:gr-qc/0612174
- Bibcode:
- 2009EL.....8530007H
- Keywords:
-
- General Relativity and Quantum Cosmology
- E-Print:
- This paper has been revised and will appear in EPL (Europhysics Letters)