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  About Papadodimas-Raju paper

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https://arxiv.org/pdf/1503.08825

The first comment in figure 1. seems to be wrong

' Even in the presence of a black hole, nice slices can be parameterized by coordinates on $ [0, 1) \times S^{d - 1} $ '

It is clear that the nice slices unambiguously specify the CFT operators. But it will not give the generalized harmonic gauges.

If you use the full tensor $ g_{ij} $, we run into difficulties with gauge invariance. This can be avoided by taking a scalar field $g_{00}$ 

This is gauge invariant because for a scalar field the $ \hbar $ in the Klein-Gordon equation can be removed.

asked Dec 22, 2024 in Q&A by Prashant (0 points) [ revision history ]
reshown Jan 17 by Prashant

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