It is argued that the ground state of the Kaluza-Klein unified theory is unstable against a process of semiclassical barrier penetration. This is related to the fact that the positive energy conjecture does not hold for the Kaluza-Klein theory; an explicit counter-example is given. The reasoning presented here assumes that in general relativity one should include manifolds of non-vacuum topology. It is argued that the existence of elementary fermions (not present in the original Kaluza-Klein theory) would stabilize the Kaluza-Klein vacuum.
|Original language||English (US)|
|Number of pages||12|
|Journal||Nuclear Physics, Section B|
|State||Published - Feb 22 1982|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics