APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Junichi Yokoyama (RESCEU, U of Tokyo)
Title: Creation of an inflationary universe out of a black hole
Date (JST): Wed, Jun 01, 2016, 13:30 - 14:30
Place: Seminar Room A
Related File: 1692.pdf
Abstract: We investigate the effect of a black hole as a nucleation cite of a false vacuum bubble based on the Euclidean actions of relevant configurations. As a result we find a wormhole-like configuration may be spontaneously nucleated once the black hole mass falls below a critical value of order of the Hubble parameter corresponding to the false vacuum energy density. As the space beyond the wormhole throat can expand exponentially, this may be interpreted as creation of another inflationary universe in the final stage of the black hole evaporation.