Quantum geometrodynamics of Einstein and conformal (Weyl-squared) gravity

被引：0
|
作者：
Kiefer, Claus [1 ]
Nikolic, Branislav [1 ]
机构：
[1] Univ Cologne, Inst Theoret Phys, Zulpicher Str 77, D-50937 Cologne, Germany
来源：
8TH INTERNATIONAL WORKSHOP DICE2016: SPACETIME - MATTER - QUANTUM MECHANICS | 2017年 / 880卷
关键词：
D O I：
10.1088/1742-6596/880/1/012002
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We discuss the canonical quantization of general relativity and Weyl-squared gravity. We present the classical and quantum constraints and discuss their similarities and differences. We perform a semiclassical expansion and discuss the emergence of time for the two theories. While in the first case semiclassical time has a scale and a shape part, in the second case it only has a shape part.
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页数：10
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