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Stability of Vacua and Domain Walls in Supergravity and Superstring Theory | | Mirjam Cvetic
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1 Oct 1992 | | Subject: | hep-th gr-qc | | Abstract: | We address the possibility of false vacuum decay in $N=1$ supergravity theories, including those corresponding to superstring vacua. By establishing a Bogomol’nyi bound for the energy density stored in the domain wall of the $O(4)$ invariant bubble, we show that supersymmetric vacua remain absolutely stable against false vacuum decay into another supersymmetric vacuum, including those from a Minkowski to an anti-deSitter (AdS) one. As a consequence, there are no compact static spherical domain walls, while on the other hand there exist planar domain walls interpolating between non-degenerate supersymmetric vacua, e.g. between Minkowski (topology $Re^{4}$) and AdS (topology $S^{1}(time) imes Re^{3}(space)$) vacua. (Talk presented at the XXVI International Conference on High Energy Physics August 6-12, 1992, Dallas, Texas) | | Source: | arXiv, hep-th/9210006 | | Services: | Forum | Review | PDF | Favorites | |
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