The evaporation spectrum of black holes from a local quantum gravity perspective

Abstract : We revisit the hypothesis of a possible line structure in the Hawking evaporation spectrum of black holes, due to non-perturbative quantum gravity effects, even arbitrarily far away from the Planck mass. We show that this naive prediction might in fact hold in the specific context of loop quantum gravity, with a small departure from the ideal case for some low-spin transitions. We also show that the effect is neither washed out by the dynamics of the process, nor by existence of a mass spectrum up to a given width, nor by the secondary component induced by the decay of neutral pions emitted during the time-integrated evaporation.
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Submitted on : Thursday, May 26, 2016 - 10:19:31 AM
Last modification on : Tuesday, May 22, 2018 - 9:48:06 PM

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A. Barrau. The evaporation spectrum of black holes from a local quantum gravity perspective. Physical Review Letters, American Physical Society, 2016, 117, pp.271301 ⟨10.1103/PhysRevLett.117.271301⟩. ⟨in2p3-01321671⟩

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