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On Stochastic Effects and Primordial Black-Hole Formation

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arxiv 1906.02744 v2 pith:C3HOHGL4 submitted 2019-06-06 gr-qc astro-ph.CO

classification gr-qcastro-ph.CO
keywords primordialblack-holeformationstochasticabundancealongamplifiedblack
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The effect of large quantum fluctuations on primordial black-hole formation during an inflationary phase along a plateau is investigated. By using techniques of stochastic inflation in combination with replica field theory and the Feynman-Jensen variational method, it is non-perturbatively demonstrated that the abundance of primordial black holes is amplified by several orders of magnitude as compared to the classical computation.

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