Could the dynamics of the Universe be influenced by what is going on inside black holes?

Abstract

We investigate the potential impact of mass inflation inside black holes on the dynamics of the Universe, considering a recent reformulation of general relativity, proposed in [1], which prevents the vacuum energy from acting as a gravitational source. The interior dynamics of accreting black holes is studied, at the classical level, using the homogeneous approximation and taking charge as a surrogate for angular momentum. We show that, depending on the accreting fluid properties, mass inflation inside black holes could influence the value of the cosmological constant and thus the dynamics of the Universe. A full assessment of the cosmological role played by black holes will require a deeper understanding of the extremely energetic regimes expected inside real astrophysical black holes, including their relation with the physics of the very early Universe, and may eventually lead to an entirely new paradigm for the origin and evolution of the Universe.

arXiv comment8 pages, 2 figures. Version 2 (accepted for publication in JCAP): minor typos corrected

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• Inner Structure of Black Holes in Eddington-inspired Born-Infeld gravity: the role of mass inflation
• Mass inflation in Eddington-inspired Born-Infeld black holes: analytical scaling solutions