期刊
EUROPEAN PHYSICAL JOURNAL C
卷 72, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-012-1987-0
关键词
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资金
- National Natural Science Foundation of China [10773002, 10875012, 11175019]
- Fundamental Research Funds for the Central Universities [105116]
With the help of the Bohr-Sommerfeld quantization rule, the area spectrum of a charged, spherically symmetric spacetime is obtained by studying an adiabatic invariant action variable. The period of the Einstein-Maxwell system, which is related to the surface gravity of a given spacetime, is determined by Kruskal-like coordinates. It is shown that the area spectrum of the Reissner-Nordstrom black hole is evenly spaced and the spacing is the same as that of a Schwarzschild black hole, which indicates that the area spectrum of a black hole is independent of its parameters. In contrast to quasi-normal mode analysis, we do not impose the small charge limit, as the general area gap 8 pi is obtained.
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