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arXiv · 2201.06579

Trans-IR Flows to Black Hole Singularities

Elena Caceres·Arnab Kundu·Ayan K. Patra·Sanjit Shashi
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Abstract

We study analytic continuations of holographic renormalization group (RG) flows beyond their infrared (IR) fixed points. Such "trans-IR" flows are a natural framework for describing physics inside of black holes. First, we construct a monotonic holographic $a$-function which counts degrees of freedom along a trans-IR flow. Using this function, we argue that the degrees of freedom "thin out" and vanish when flowing to a trans-IR endpoint, represented by a Kasner singularity. We then recast well-studied quantum information probes in the language of trans-IR flows, finding that entanglement and complexity from volume generally fail to fully probe the trans-IR while 2-point correlations and complexity from action generally do so in a complementary manner.

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Elena Caceres, Arnab Kundu, Ayan K. Patra, Sanjit Shashi. 2022-08-04. Trans-IR Flows to Black Hole Singularities. https://doi.org/10.1103/physrevd.106.046005

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