Tunneling dynamics in cosmological bounce models

  title={Tunneling dynamics in cosmological bounce models},
  author={Martin Bojowald and Brenda Jones},
  journal={Journal of Cosmology and Astroparticle Physics},
  • M. Bojowald, Brenda Jones
  • Published 14 September 2021
  • Physics
  • Journal of Cosmology and Astroparticle Physics
Quasiclassical methods are used to define dynamical tunneling times in models of quantum cosmological bounces. These methods provide relevant new information compared with the traditional treatment of quantum tunneling by means of tunneling probabilities. As shown here, the quantum dynamics in bounce models is not secure from reaching zero scale factor, re-opening the question of how the classical singularity may be avoided. Moreover, in the examples studied here, tunneling times remain small… Expand

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