Primordial black holes are true vacuum nurseries
Louis Hamaide, Lucien Heurtier, Shi-Qian Hu, Andrew Cheek
Abstract
The Hawking evaporation of primordial black holes (PBH) reheats the Universe locally, forming hot spots that survive throughout their lifetime. We propose to use the temperature profile of such hot spots to calculate the decay rate of metastable vacua in cosmology, avoiding inconsistencies inherent to the Hartle-Hawking or Unruh vacuum. We apply our formalism to the case of the electroweak vacuum stability and find that a PBH energy fraction β>7×10−80(M/g)3/2 is ruled out for black holes with masses 0.8g<M<1015g.
Topics & Concepts
PhysicsUnruh effectPrimordial black holeElectroweak interactionMicro black holeFalse vacuumCosmologyHawking radiationFormalism (music)MetastabilityVacuum energyHawkingParticle physicsBlack hole (networking)Theoretical physicsQuantum electrodynamicsUniverseAstrophysicsQuantum mechanicsBinary black holeGravitational waveQuantumMusicalArtLink-state routing protocolVisual artsComputer networkComputer scienceRouting (electronic design automation)Routing protocolCosmology and Gravitation TheoriesQuantum Electrodynamics and Casimir EffectBlack Holes and Theoretical Physics