arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0903.2109hep-thgr-qc
收藏

荷电BTZ黑洞的熵函数方法

Entropy function approach to charged BTZ black hole

Yun Soo Myung, Yong-Wan Kim, Young-Jai Park

摘要:

我们利用Lambert函数求出了荷电BTZ黑洞度规函数f(r)=0的解。用非线性关系M_e(Q)=Q^2(1- \ln Q^2)确定了BTZ黑洞的极限带电条件。然后,我们利用熵函数方法研究了极端带电BTZ黑洞的熵。结果表明,由于AdS_2 × S^1代表了极值带电BTZ黑洞的近视界几何,因此该方法适用于带电BTZ黑洞的电荷Q的适当归一化.最后,我们介绍了Wald的Noether形式主义,重现极端带电BTZ黑洞的熵时,没有归一化的引力方法。

英文摘要:

We find solution to the metric function f(r)=0 of charged BTZ black hole making use of the Lambert function. The condition of extremal charged BTZ black hole is determined by a non-linear relation of M_e(Q)=Q^2(1-\ln Q^2). Then, we study the entropy of extremal charged BTZ black hole using the entropy function approach. It is shown that this formalism works with a proper normalization of charge Q for charged BTZ black hole because AdS_2 x S^1 represents near-horizon geometry of the extremal charged BTZ black hole. Finally, we introduce the Wald's Noether formalism to reproduce the entropy of the extremal charged BTZ black hole without normalization when using the dilaton gravity approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑