TL;DR
This paper explores a quantum cosmological model within Rainbow gravity, demonstrating that it naturally avoids singularities and predicts a bouncing universe, with the wave function's behavior influenced by operator ordering.
Contribution
It introduces a singularity-free Rainbow gravity cosmological model where the universe exhibits a bounce, derived from superposed wave functions and quantum interpretation.
Findings
The model avoids cosmological singularities.
A bouncing non-singular universe is predicted.
Wave packets depend on Rainbow functions and operator ordering.
Abstract
Isotropic quantum cosmological perfect fluid model is studied in the formalism of Rainbow gravity. It is found that the only surviving matter degree of freedom played the role of cosmic time. It is possible to find the wave packet naturally with a suitable choice of the Rainbow functions which resulted from the superposition of the wave functions of the Schrdinger-Wheeler-deWitt equation. The many-worlds interpretation of quantum mechanics is applied to investigate the behavior of the scale factor and the behaviour is found to depend on the operator ordering. It is shown that the model in the Rainbow framework naturally avoids singularity and a bouncing non-singular universe is found.
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