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Quantum Gravity in 2 + 1 Dimensions: The Case of a Closed Universe
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 o...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Springer International Publishing
2005
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5253928/ https://www.ncbi.nlm.nih.gov/pubmed/28163645 http://dx.doi.org/10.12942/lrr-2005-1 |
| Sumario: | 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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