Spontaneously broken asymptotic symmetries and an effective action for horizon dynamics
Asymptotic spacetime symmetries have been conjectured to play an important role in quantum gravity. In this paper we study the breaking of asymptotic symmetries associated with a null horizon boundary. In two-dimensions, these symmetries are reparametrizations of the time parameter on the horizon. W...
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| Médium: | Journal article |
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Springer Verlag
2017
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