Quantum fate of singularities in a dark-energy dominated universe

@article{BouhmadiLpez2009QuantumFO,
  title={Quantum fate of singularities in a dark-energy dominated universe},
  author={Mariam Bouhmadi-L{\'o}pez and Claus Kiefer and Barbara Sandhoefer and Paulo Vargas Moniz},
  journal={Physical Review D},
  year={2009},
  volume={79},
  pages={124035}
}
Classical models for dark energy can exhibit a variety of singularities, many of which occur for scale factors much bigger than the Planck length. We address here the issue of whether some of these singularities, the big freeze and the big demarrage, can be avoided in quantum cosmology. We use the framework of quantum geometrodynamics. We restrict our attention to a class of models whose matter content can be described by a generalized Chaplygin gas and be represented by a scalar field with an… 

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