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Nonstandard entropic approaches in black hole thermodynamics and cosmology

Apr. 27 - 14:30 - 2017

Viktor Czinner (CENTRA)

Abstract:

In the first part of the talk, I will present a recent approach to black hole
thermodynamics where the Bekenstein-Hawking entropy is regarded as
a nonextensive Tsallis entropy, and the thermodynamic and stability
properties of the system are obtained via its formal logarithm, the
Rényi entropy function. In the second part, I will introduce a parametric
model for cosmic information entropy in order to consider the problem
of information entanglement between spatially separated but causally
connected regions of the universe.