We provide a (simplified) quantum description of primordial black holes at the time of their formation. Specifically, we employ the horizon quantum mechanics to compute the probability of black hole formation starting from a simple quantum mechanical characterization of primordial density fluctuations given by a Planckian spectrum. We then estimate the initial number of primordial black holes in the early universe as a function of their typical mass, spatial width and temperature of the fluctuation.
Quantum formation of primordial black holes / Casadio, Roberto; Giugno, Andrea; Giusti, Andrea; Lenzi, Michele. - In: GENERAL RELATIVITY AND GRAVITATION. - ISSN 0001-7701. - ELETTRONICO. - 51:8(2019), pp. 103.1-103.10. [10.1007/s10714-019-2587-1]
Quantum formation of primordial black holes
Casadio, Roberto;Giusti, Andrea;Lenzi, Michele
2019
Abstract
We provide a (simplified) quantum description of primordial black holes at the time of their formation. Specifically, we employ the horizon quantum mechanics to compute the probability of black hole formation starting from a simple quantum mechanical characterization of primordial density fluctuations given by a Planckian spectrum. We then estimate the initial number of primordial black holes in the early universe as a function of their typical mass, spatial width and temperature of the fluctuation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
