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Paper   IPM / Physic / 7101
School of Physics
  Title:   Expansion of Bubbles in Inflationary Universe
1.  M. Mohazzab
2.  M.M. Sheikh-Jabbari
3.  H. Salehi
  Status:   Preprint
  No.:  0
  Year:  1995
  Supported by:  IPM
We show that particle production during the expansion of bubbles of true vacuum in the sea of false vacuum is possible and calculate the resulting rate. As a result the nucleated bubbles cannot expand due to the transfer of false vacuum energy to the created particles inside the bubbles. Therefore all the inflationary models dealing with the nucleation and expansion of the bubbles (including extended inflation) may not be viable.

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