It is shown that in a system of self-interacting scalar fields in anti-de Sitter space, there exist for a certain range of parameters two separate vacua: one is symmetric and the other is not. These two vacua are stable against both small oscillations and semi-classical tunneling.
|Number of pages||4|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - 22 Oct 1987|
Bibliographical noteFunding Information:
¢~ Supported in part by the US-Israel Binational Science Foundation. ~ I use the conventions: R~a,~ =O,,l'u'~-..., R=g~'R'~,~,, and signature ( +, -, -, - ). - det gu~ = g.