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Status |
Confirmed |
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Seminar Series |
SEM-EXCEP |
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Subjects |
hep-th |
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Date |
Friday 29 September 2023 |
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Time |
14:30 |
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Institute |
CPHT |
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Seminar Room |
Salle de conférences du LLR aile 5 (Ecole Polytechnique) |
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Speaker's Last Name |
Mukhanov |
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Speaker's First Name |
Slava |
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Speaker's Email Address |
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Speaker's Institution |
Ludwig-Maximilians-Universitat Munchen |
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Title |
False vacuum decay: thick wall approximation |
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Abstract |
I will consider the case where the potential for the scalar field is either
unbounded from below or the second minimum corresponding to the true va- cuum has
a depth exceeding the height of the potential barrier. In this case, the
materialized bubbles dominating the vacuum decay naturally have a thick wall and
the thin-wall approximation is not applicable. In such a case the main
contribution to the action determining the decay probability of the false va- cuum
comes from the part of the solution for which the potential term in the equation
for instantons can be neglected compared to the friction term. I show that the
developed approximation exactly reproduces the leading order results for the few
known exactly solvable potentials. |
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arXiv Preprint Number |
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Comments |
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