Quantum Gravity in 2+1 Dimensions: The Case of a Closed Universe

被引：70
作者：
Carlip, Steven [1 ]
机构：
[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA
来源：
LIVING REVIEWS IN RELATIVITY | 2005年 / 8卷 / 1期
关键词：
D O I：
10.12942/lrr-2005-1
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In three spacetime dimensions, general relativity drastically simplifies, becoming a "topological" theory with no propagating local degrees of freedom. Nevertheless, many of the difficult conceptual problems of quantizing gravity are still present. In this review, I summarize the rather large body of work that has gone towards quantizing (2 + 1)-dimensional vacuum gravity in the setting of a spatially closed universe.
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