文献类型：期刊文献

中文题名：砖墙模型不能给出黑洞熵

英文题名：The brick-wall model unapplicable to the calculating of black hole entropy

作者：杨学军[1];赵峥[2]

机构：[1]绍兴文理学院物理与电子信息系;[2]北京师范大学物理系

年份：2011

卷号：60

期号：8

起止页码：37

中文期刊名：物理学报

外文期刊名：Acta Physica Sinica

收录：SCI-EXPANDED(收录号：WOS:000294392400007)、CSTPCD、、Scopus、CSCD2011_2012、北大核心2008、WOS、北大核心、CSCD

基金：Project supported by the National Natural Science Foundation of China (Grant Nos. 10873003, 11045005) and the Natural Science Foundation of Zhejiang Province, China (Grant No. Y6090739).

语种：中文

中文关键词：黑洞熵;砖墙模型;截断因子;广义不确定关系

外文关键词：black hole entropy; brick-wall model; cutoff factor; generalized uncertainty relation

中文摘要：砖墙模型被广泛用于静态或稳态黑洞熵的计算,但为了避免发散,砖墙模型需要引入一紫外截断因子.截断因子的引入至今没有给以合理的解释.有工作表明,用砖墙模型或薄膜模型计算黑洞熵时,若采用广义不确定关系则可以去掉截断因子.证明了将广义不确定关系用于砖墙模型计算Schwarzschild黑洞熵时,由于砖墙模型给出熵的第一项既是Bekenstein-Hawking项又含有截断因子,因此在去掉截断因子的同时也丢掉了Bekenstein-Hawking项,将得不到黑洞熵.

外文摘要：The brick-wall model is widely used to calculate the entropies of static or stationary black holes.An ultraviolet cutoff factor needs to be introduced to remove the divergence of the result in brick-wall model.The cutoff factor has not been explained reasonably up to now.A study indicated that when the brick-wall model or thin film model was used to calculate the black hole entropy,the ultraviolet cutoff factor could be discarded if the generalized uncertainty relation was adopted.In this paper,it is proved that since the first term of Schwarzschild black hole entropy formula in the brick-wall model is not only the Bekenstein-Hawking term but also the term containing the ultraviolet cutoff factor,when the cutoff factor is removed,the Bekenstein-Hawking term is lost and the black hole entropy cannot be obtained by using the generalized uncertainty relation in brick-wall model.