Compactification of extra dimensions in quantum inhomogeneous Kaluza-Klein cosmological models
- 作者：Kirillov ; Alexander A. ; Melnikov ; Vitaly N.
- 刊名：Physics Letters B
- 出版年：1996
- 期刊代码：58_03702693
- 类别：ph
- 出版时间：December 12, 1996
- 卷：389
- 期：2
- 页码：221-224
- 文件大小：286 K
摘要
Quantum dynamics of inhomogeneous Kaluza-Klein cosmological models in the vicinity of a cosmological singularity is considered. It is shown that in the early universe if the number of dimensions D is less than or equal to ten, mean values of the metric indicate the existence of the initial stage of a compactification process. It is shown that such a behaviour of the mean values does not depend on a particular choice of an initial quantum state and, therefore, is a general property of the quantum evolution in the inhomogeneous Kaluza-Klein cosmologies.