Abstract
It is shown, by applying the positive-energy theorem, that the present vacuum (M4×KD) in some higher-dimensional theories (e.g. the Candelas-Weinberg model) is stable against decay by quantum tunnelling without change of topology. Frieman and Kolb have found a quantum tunnelling instability of the present vacuum in the same models. But they did not take into account the gravitational effect, which is important and prevents the universe from decaying into the higher-dimensional de Sitter phase.
| Original language | English |
|---|---|
| Pages (from-to) | 33-37 |
| Number of pages | 5 |
| Journal | Physics Letters B |
| Volume | 186 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1987 Feb 26 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Is the compactified vacuum semiclassically unstable? / Maeda, Keiichi.
In: Physics Letters B, Vol. 186, No. 1, 26.02.1987, p. 33-37.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Is the compactified vacuum semiclassically unstable?
AU - Maeda, Keiichi
PY - 1987/2/26
Y1 - 1987/2/26
N2 - It is shown, by applying the positive-energy theorem, that the present vacuum (M4×KD) in some higher-dimensional theories (e.g. the Candelas-Weinberg model) is stable against decay by quantum tunnelling without change of topology. Frieman and Kolb have found a quantum tunnelling instability of the present vacuum in the same models. But they did not take into account the gravitational effect, which is important and prevents the universe from decaying into the higher-dimensional de Sitter phase.
AB - It is shown, by applying the positive-energy theorem, that the present vacuum (M4×KD) in some higher-dimensional theories (e.g. the Candelas-Weinberg model) is stable against decay by quantum tunnelling without change of topology. Frieman and Kolb have found a quantum tunnelling instability of the present vacuum in the same models. But they did not take into account the gravitational effect, which is important and prevents the universe from decaying into the higher-dimensional de Sitter phase.
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UR - http://www.scopus.com/inward/citedby.url?scp=0002457013&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(87)90508-9
DO - 10.1016/0370-2693(87)90508-9
M3 - Article
VL - 186
SP - 33
EP - 37
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1
ER -