缓变动态Reissner-Nordstrm黑洞的熵

Entropy of the non-stationary and slowly changing Reissner-Nordstrm black hole

采用薄膜brick-wall模型,运用WKB近似,计算了缓变动态Reissner-Nordstr m黑洞的标量场的熵.结果表明,通过适当选取截断因子,仍可得出黑洞熵与视界面积成正比的结论.

Using the thin film brick-wall model and WKB approximation, the entropy of the scalar quantity field in the non-stationary and slowly changing Reissner-Nordstroem（R-N）black hole is calculated. The result shows that the entropy of the R-N black hole is still proportional to its surface area if we choose proper cut-off.