Spontaneous creation of the universe from nothing

  title={Spontaneous creation of the universe from nothing},
  author={Dongshan He and Dong-feng Gao and Qing-yu Cai},
  journal={Physical Review D},
An interesting idea is that the universe could be spontaneously created from nothingbut no rigorousproof has been given. In this paperwe present such a proof based on the analytic solutions of the Wheeler-DeWitt equation (WDWE). Explicit solutions of the WDWE for the special operator ordering factorp= -2 (or 4) show thatonce a small true vacuum bubble is created by quantum fluctuations of themetastable false vacuumit can expand exponentially no matter whether the bubble is closed,flat,or open… 
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The objective of the current work is to present the results of several numerical simulations of pulsatile blood flow in healthy and diseased arteries and compare with clinical expectations to ensure the simulations stay realistic and reliable for clinicians.
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