Comment on `Black hole entropy and isolated horizon thermodynamics'
arXiv:1204.2729
Abstract
There is a deep underlying problem in the model dependent thermodynamic analysis of black holes shown in the above quoted paper. In this method one can only find out the canonical entropy of the black hole but not the `microcanonical' entropy. Besides this crucial issue a few other problems are also discussed.
The author thinks that the novelty of the idea of `quantum hair' of black holes proposed in this paper surpasses its weak points. Some constructive works have been done by the author in other papers which are based on or inspired by the concept of `quantum hair'. Hence, this comment is needless to be on the arxiv any more