Barrau Aurélien
Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, 53 Avenue des Martyrs, 38026 Grenoble Cedex, France.
Phys Rev Lett. 2016 Dec 30;117(27):271301. doi: 10.1103/PhysRevLett.117.271301. Epub 2016 Dec 28.
We revisit the hypothesis of a possible line structure in the Hawking evaporation spectrum of black holes. Because of nonperturbative quantum gravity effects, this would take place arbitrarily far away from the Planck mass. We show, based on a speculative but consistent hypothesis, that this naive prediction might in fact hold in the specific context of loop quantum gravity. A small departure from the ideal case is expected for some low-spin transitions and could allow us to distinguish several quantum gravity models. We also show that the effect is not washed out by the dynamics of the process, by the existence of a mass spectrum up to a given width, or by the secondary component induced by the decay of neutral pions emitted during the time-integrated evaporation.
我们重新审视黑洞霍金蒸发谱中可能存在线结构的假设。由于非微扰量子引力效应，这将在远离普朗克质量的任意远处发生。基于一个推测但一致的假设，我们表明这个天真的预测实际上可能在圈量子引力的特定背景下成立。对于一些低自旋跃迁，预计会与理想情况有小的偏差，这可能使我们能够区分几种量子引力模型。我们还表明，该效应不会被过程的动力学、直至给定宽度的质量谱的存在或时间积分蒸发期间发射的中性π介子衰变所诱导的次级成分所消除。
