期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
卷 24, 期 1, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218271815300050
关键词
Loop quantum gravity; spin foams; black hole thermodynamics; loop quantum cosmology
资金
- Ministry of Science and Technology of Taiwan [101-2112-M-002-027-MY3, 101-2112-M-003-002-MY3]
This paper presents an in-a-nutshell yet self-contained introductory review on loop quantum gravity (LQG) - a background-independent, nonperturbative approach to a consistent quantum theory of gravity. Instead of rigorous and systematic derivations, it aims to provide a general picture of LQG, placing emphasis on the fundamental ideas and their significance. The canonical formulation of LQG, as the central topic of the paper, is presented in a logically orderly fashion with moderate details, while the spin foam theory, black hole thermodynamics, and loop quantum cosmology are covered briefly. Current directions and open issues are also summarized.
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