(Quantum) spacetime as a statistical geometry of fuzzy lumps and the connection with random metric spaces

被引:11
|
作者
Requardt, M
Roy, S
机构
[1] Univ Gottingen, Inst Theoret Phys, D-37073 Gottingen, Germany
[2] Indian Stat Inst, Kolkata 700035, W Bengal, India
关键词
D O I
10.1088/0264-9381/18/15/317
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We develop a kind of pregeometry consisting of a web of overlapping fuzzy lumps which interact with each other. The individual lumps are understood as certain closely entangled subgraphs (cliques) in a dynamically evolving network which, in a certain approximation, can be visualized as a time-dependent random graph. This strand of ideas is merged with another one, deriving from ideas, developed some time ago by Menger et al, that is, the concept of probabilistic- or random metric spaces, representing a natural extension of the metrical continuum into a more microscopic regime. It is our general goal to find a better adapted geometric environment for the description of microphysics. In this sense one may also view it as a dynamical randomization of the causal-set framework developed by, for example, Sorkin et al. In doing this we incorporate, as a perhaps new aspect, various concepts from fuzzy set theory.
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页码:3039 / 3057
页数:19
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