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Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task
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A bouncing cosmology from VECROs.

Robert Brandenberger1, Gabrielle A Mitchell1

  • 1Department of Physics, McGill University, Montreal, QC H3A 2T8 Canada.

The European Physical Journal. C, Particles and Fields
|April 25, 2023
PubMed
Summary
This summary is machine-generated.

In black holes, VECROs prevent singularities. Similarly, a VECRO gas in a contracting universe could prevent a Big Crunch, enabling a nonsingular cosmological bounce.

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Area of Science:

  • Cosmology
  • General Relativity
  • Theoretical Physics

Background:

  • Cosmological models predict a Big Crunch singularity for a contracting universe.
  • Black hole physics suggests mechanisms to prevent singularity formation.

Purpose of the Study:

  • To propose a mechanism for preventing a Big Crunch singularity.
  • To introduce the concept of VECROs in cosmological models.

Main Methods:

  • Theoretical modeling based on general relativity.
  • Analogy with black hole space-time physics.

Main Results:

  • VECROs (Virtual Exotic Compact Relic Objects) are hypothesized to form in a contracting universe.
  • These VECROs would counteract gravitational collapse, preventing a singularity.
  • The formation of VECROs would lead to a nonsingular cosmological bounce.

Conclusions:

  • A gas of VECROs offers a potential solution to the Big Crunch singularity problem.
  • This mechanism could explain a nonsingular bounce in the universe's evolution.