期刊
EUROPEAN PHYSICAL JOURNAL C
卷 62, 期 2, 页码 413-418出版社
SPRINGER
DOI: 10.1140/epjc/s10052-009-1044-9
关键词
-
资金
- National Natural Science Foundation of China [10275030]
- Cuiying Project of Lanzhou University [225000-582404]
Recently, a Hamilton-Jacobi method beyond the semiclassical approximation in black hole physics was developed by Banerjee and Majhi. We generalize their analysis of black holes to the case of a Friedmann-Robertson-Walker (FRW) universe. It is shown that all the higher order quantum corrections in the single particle action are proportional to the usual semiclassical contribution. The corrections to the Hawking-like temperature and entropy of the apparent horizon for the FRW universe are also obtained. In the corrected entropy, the area law involves a logarithmic area correction together with the standard term with the inverse power of the area.
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