Are we born near a black hole?
Primordial black holes could not only explain the dark matter, but also the origin of the ordinary matter in the Universe. Sébastien, Bernard Carr and Juan García-Bellido propose a new baryogenesis scenario in Refs.[2] and [2].
More …The shape of cosmic string loop production functions
We have recently made public a rather technical paper in which we explicitly and unambiguously calculate the cosmic string loop number density distribution in our universe coming from various motivated loop production functions. Such a density distribution crucially determines the spectrum of their emitted gravitational waves, a smooking gun for their potential discovery.
More …A large mass hierarchy from a small non-minimal coupling
In a recent preprint, we discuss the possibility that both the Planck mass and the dark energy scale are dynamically generated by stochastic effects during inflation.
More …Informal meeting on Primordial Black Holes
We hold an informal meeting, organized one day before the Solvay Workshop on “The dark side of Black Holes” in Brussels (but not officially related to it), with a few experts on PBH to discuss recent developments in the field. This takes place Tuesday 2nd of April, seminar room E349 from 10 am.
More …Inflation after Planck: Judgment Day
The final release of the Planck data 2018, see this post, invited us to finalize a long project in which we discuss the actual status of Cosmic Inflation with respect to what we have learned about the early universe.
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