Was there a negative vacuum energy in your past?
George Chapline, James Barbieri

TL;DR
This paper proposes a cosmological model where the universe originated from a negative vacuum energy state, linking the big bang to quantum critical phenomena and predicting dark matter as massive compact objects.
Contribution
It introduces a novel model connecting negative vacuum energy to universe formation and predicts dark matter as large compact objects, aligning with structure formation simulations.
Findings
Dark matter consists mainly of objects around 10^4 solar masses.
The model links CMB fluctuations to dark matter density.
Predicts primordial compact objects as seeds for galaxy formation.
Abstract
A model for gravitational collapse where the event horizon is a quantum critical phase transition is extended to provide an explanation for the origin of the observable universe, where the expanding universe that we observe today was proceeded by a flat universe with a negative cosmological constant. In principal this allows one derive all the features of our universe from a single parameter: the magnitude of the pre-big bang negative vacuum energy density. In this paper a simple model for the big bang is introduced which allows us to relate the present day energy density and temperature fluctuations of the CMB, to the present day density of dark matter. This model for the big bang also makes a dramatic prediction: dark matter mostly consists of compact objects with a masses on the order of 10^4 solar masses. Remarkably this is consistent with numerical simulations for how primordial…
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