TL;DR
This paper explores solutions of a massless scalar field that mimic dark energy behavior, showing how conformal invariance restoration relates to the universe's accelerated expansion.
Contribution
It introduces solutions for a massless scalar field with a massive dispersion relation that explain dark energy's equation of state.
Findings
Solutions satisfy a massive dispersion relation
Conformal invariance is restored over cosmological timescales
The model aligns with observed dark energy behavior
Abstract
We consider a set of solutions for a massless quartic scalar field, recently devised, that satisfy a massive dispersion relation. We show that such solutions have the property to give the correct behavior for the equation of state of the dark energy. It seen that conformal invariance is restored and the mass gap goes to zero on a time scale determined by the Hubble constant and the strength of the self-interaction of the scalar field. When conformal invariance is restored, the equation of state for the dark energy can apply.
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Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Geophysics and Gravity Measurements