Cosmological constant, information and gedanken experiments with black hole horizons

TL;DR

This paper explores the role of the cosmological constant in black hole physics through thought experiments, proposing an information-based entropy framework that links to the Bekenstein bound and prevents naked singularities.

Contribution

It introduces a novel information-theoretic approach to black hole horizons in de Sitter spacetimes, connecting entropy, the cosmological constant, and horizon behavior.

Findings

Supports the idea that the cosmological constant influences black hole entropy.

Shows that the information approach forbids naked singularities.

Provides a new perspective on horizon thermodynamics in de Sitter space.

Abstract

The cosmological constant if considered as a fundamental constant, provides an information treatment for gravitation problems, both cosmological and of black holes. The efficiency of that approach is shown via gedanken experiments for the information behavior of the horizons for Schwarzschild-de Sitter and Kerr-de Sitter metrics. A notion of entropy regarding any observer and in all possible non-extreme black hole solutions is suggested, linked also to Bekenstein bound. The suggested information approach forbids the existence of naked singularities.