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arxiv: 1903.10411 · v1 · pith:QQGLN3EHnew · submitted 2019-03-25 · 🌀 gr-qc · hep-th

Dynamical renormalization of black-hole spacetimes

classification 🌀 gr-qc hep-th
keywords black-holecouplinggravitationalrenormalizationrunningself-consistentsequencespacetime
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We construct a black-hole spacetime which includes the running of the gravitational coupling in a self-consistent way. Starting from a classical Schwarzschild black hole, the backreaction effects produced by the running Newton's coupling are taken into account iteratively. The sequence, described by a simple recurrence relation, flows towards a self-consistent solution that can be derived analytically. As a key result, if the gravitational renormalization group flow attains a non-trivial fixed point at high energies, the sequence converges to a "renormalized" black-hole spacetime of the Dymnikova-type, which is free of singularities.

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