Dimension and dimensional reduction in quantum gravity

被引：93
|
作者：
Carlip, S. [1 ]
机构：
[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA
来源：
CLASSICAL AND QUANTUM GRAVITY | 2017年 / 34卷 / 19期
关键词：
quantum gravity; dimensional reduction; dimensional estimators; SPACE-TIME; GENERAL-RELATIVITY; STRING THEORY; ENERGY; LIMIT; BEHAVIOR; FIELD; PRINCIPLE; EQUATIONS; HIERARCHY;
D O I：
10.1088/1361-6382/aa8535
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A number of very different approaches to quantum gravity contain a common thread, a hint that spacetime at very short distances becomes effectively two dimensional. I review this evidence, starting with a discussion of the physical meaning of 'dimension' and concluding with some speculative ideas of what dimensional reduction might mean for physics.
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页数：27
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