Discrete gravity as a topological field theory with light-like curvature defects
Abstract I present a model of discrete gravity as a topological field theory with defects. The theory has no local degrees of freedom and the gravitational field is trivial everywhere except at a number of intersecting null surfaces. At these null surfaces, the gravitational field can be singular, r...
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| Format: | Article |
| Language: | English |
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Springer
2017-05-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | http://link.springer.com/article/10.1007/JHEP05(2017)142 |