https://doi.org/10.1140/epjc/s10052-018-6108-2
Regular Article - Theoretical Physics
Why the entropy of spacetime is independent of species of particles: the species problem
1
Department of Physics, Tianjin University, Tianjin, 300350, People’s Republic of China
2
Theoretical Physics Division, Chern Institute of Mathematics, Nankai University, Tianjin, 300071, People’s Republic of China
* e-mail: daiwusheng@tju.edu.cn
Received:
8
September
2016
Accepted:
30
July
2018
Published online:
9
August
2018
The Hawking radiation emits all species of particles, but the Bekenstein–Hawking entropy is independent of the number of the species of particles. This is the so-called species problem—a puzzling problem for a long time. In this paper, we suggest a solution to this problem. A result of the scheme is that the black hole atmosphere has a mass equaling 3/8 mass of a classical Schwarzschild black hole, which agrees with ’t Hooft’s brick wall model.
© The Author(s), 2018
