Abstract
General Relativity allows for a cosmological constant (Λ) which has inspired models of cosmic Inflation and Dark Energy. We show instead that rΛ=3/Λ corresponds to an event horizon: a causal boundary term in the action. Our Universe is expanding inside its Schwarzschild radius rS=rΛ=2GM, which could have originated from a uniform free falling cloud of mass M that collapsed as a Black Hole (BH) 25 Gyrs ago. Such a BH Universe allows for large-scale structure formation without the need of Inflation or Dark Energy.
Subject
Physics and Astronomy (miscellaneous),General Mathematics,Chemistry (miscellaneous),Computer Science (miscellaneous)
Cited by
11 articles.
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1. Background gravitational waves as signature of the accelerated cosmic expansion;Modern Physics Letters A;2024-06-28
2. Do White Holes Exist?;Universe;2023-04-19
3. The mass of our observable Universe;Monthly Notices of the Royal Astronomical Society: Letters;2023-02-14
4. Challenges for ΛCDM: An update;New Astronomy Reviews;2022-12
5. What moves the heavens above?;Physics Letters B;2022-12