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B Does this paper disprove the possibility of a new universe creation?

  1. Sep 6, 2017 #1

    Yid

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    My question has multiple parts, does the following paper:

    https://arxiv.org/abs/1405.0298

    Disprove the possibility of creation of another universe through quantum fluctuations if heat death occurs?

    If it does could another universe still be created through quantum tunneling?

    Can quantum tunneling exist without quantum fluctuations in De Sitter Space?

    How credible is this paper? Are there any that refute the authors claims?
     
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  3. Sep 6, 2017 #2

    kimbyd

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    My general feeling is that it puts the "fecund universe" idea into serious doubt, but there's too much speculation in the paper to be certain. I would consider the paper to be one requiring serious consideration by anybody who is proposing a new idea for how new universes might form.
     
  4. Sep 9, 2017 #3

    Yid

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    Do you have any knowledge on quantum tunneling? Can it exist without quantum fluctuations?

    What is some of the speculation in the paper?

    Thanks for the reply.
     
  5. Sep 11, 2017 #4

    kimbyd

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    Quantum tunneling can still exist if it's to a lower-energy vacuum state, if such a state exists. If tunneling to a lower-energy vacuum state were to occur somewhere within our cosmological horizon, the lower-energy vacuum state would spread outward at very close to the speed of light and destroy everything within the original tunneling event's horizon.

    Quantum tunneling to a higher-energy state can't exist in this model because there aren't fluctuations that raise energy.
     
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