Strolling along gravitational vacua
Abstract We consider General Relativity (GR) on a space-time whose spatial slices are compact manifolds M with non-empty boundary ∂M. We argue that this theory has a non-trivial space of ‘vacua’, consisting of spatial metrics obtained by an action on a reference flat metric by diffeomorpisms that ar...
| Main Authors: | , , |
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| 格式: | 文件 |
| 语言: | English |
| 出版: |
SpringerOpen
2020-01-01
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| 丛编: | Journal of High Energy Physics |
| 主题: | |
| 在线阅读: | https://doi.org/10.1007/JHEP01(2020)184 |