Vacuum states in supersymmetric Kaluza-Klein theory
Vacuum states in supersymmetric Kaluza-Klein theory
复制标题
超对称卡鲁扎-克莱因理论中的真空态
DOI:
10.1016/0370-2693(84)90669-5
复制
发表时间:
1984
影响因子:
4.4
通讯作者:
J. Kowalski
中科院分区:
文献类型:
--
作者:
J. Kowalski
The supersymmetric Kaluza Klein theory was proposed several years ago by Witten [1]. The main point of this proposal (in the most orthodox interpretation, which I will follow) is that space-time has eleven dimensions and that the really unified theory governing the world is D--11, N= 1 supergravity by Cremmer et al.[2]. The low dimensional physics is obtained from the full theory by a procedure called dimensional reduction, which is performed in the following way. We start with a certain configuration of background fields. The topology of the background manifold is (at least locally) of the form M 4 XC 7, where M 4 is a four dimensional manifold with Minkowski signature and C 7 is a seven dimensional homogeneous space G/H, where G is a compact Lie group and H its subgroup. Then all fields are expanded into generalized spherical harmonics on seven dimensional space which means that the fields are compatible with the action of the group oil" internal space". The components of this expansion give us effective four dimensional fields.From the ideology given above it is clear that the first step of the construction must be finding an appropriate configuration of background fields. It seems~ o be reasonable that this configuration must have exactly zero energy. This condition may allow many ground states, all of which are equally good. At this point I relax an assumption by Brian et al.[3], who additionally requ! re four dimensional Lorentz invariance. I think that this assumption is inconsistent with the ideology of this version of Kaluza-Klein Work supported in part by Polish Research Project MR. 1.7.