# Comment on “Black Hole Entropy: A Closer Look”

@article{Pessoa2020CommentO, title={Comment on “Black Hole Entropy: A Closer Look”}, author={Pedro Pessoa and Bruno Arderucio Costa}, journal={Entropy}, year={2020}, volume={22} }

In a recent paper (Entropy 2020, 22(1), 17), Tsallis states that entropy—as in Shannon or Kullback–Leiber’s definitions—is inadequate to interpret black hole entropy and suggests that a new non-additive functional should take the role of entropy. Here we counterargue by explaining the important distinction between the properties of extensivity and additivity; the latter is fundamental for entropy, while the former is a property of particular thermodynamical systems that is not expected for…

## 3 Citations

Reply to Pessoa, P.; Arderucio Costa, B. Comment on “Tsallis, C. Black Hole Entropy: A Closer Look. Entropy 2020, 22, 17”

- Medicine, Computer ScienceEntropy
- 2021

In the present Reply, the focus only onto the main erroneous claims by Pessoa and Costa in their recent Comment (Entropy 2020, 22, 1110).

Entropic Dynamics of Networks

- Physics, Computer ScienceArXiv
- 2021

A framework for the dynamics of graphs meant to represent a network derived from the principle of maximum entropy and the rate of transition is obtained taking into account the natural information geometry of probability distributions to apply to the Gibbs distribution of random graphs obtained with constraints on the node connectivity.

Statistical Mechanics of Unconfined Systems: Challenges and Lessons

- PhysicsPhysical Sciences Forum
- 2021

Motivated by applications of statistical mechanics in which the system of interest is spatially unconfined, we present an exact solution to the maximum entropy problem for assigning a stationary…

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