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Black holes from nucleating strings
Garriga Torres, Jaume; Vilenkin, A. (Alexander)
Universitat de Barcelona
We evaluate the probability that a loop of string that has spontaneously nucleated during inflation will form a black hole upon collapse, after the end of inflation. We then use the observational bounds on the density of primordial black holes to put constraints on the parameters of the model. Combining these constraints with current upper limits on the expansion rate during inflation, we conclude that the density of black holes formed from nucleating strings is too low to be observed. Also, constraints on domain wall nucleation and monopole pair production during inflation are briefly discussed.
Black holes (Astronomy)
Teoria quàntica de camps
Forats negres (Astronomia)
Quantum field theory
(c) The American Physical Society, 1993
The American Physical Society

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