The Big-Bang discussed by its inventor
A genuine filmed interview of Georges Lemaître from 1964 resurfaced. We can all listen to the inventor of the “Big-Bang”, talking about his own theory, in French.
More …Cosmology Seminar
The next cosmology seminar takes place on Friday 2nd of December, seminar room E349 at 2pm. Our guest speaker will be Davide Dal Cin from SISSA (Trieste, Italy).
More …Mean-field approach to Random Apollonian Packing
Bubble nucleation is a phenomenon ubiquitous in physics, with applications ranging from the geometry of tree crowns, the structure of porous media and of sphere packing. Bubbles also find applications in cosmology such as the characterization of cosmic voids in the large scale structure and the signatures of cosmological phase transitions. In a new preprint, Pierre proposes a new method to determine the fractal properties of the so-called Random Apollonian Packing.
More …Cosmology Seminar
The next cosmology seminar takes place on Friday 30th of September, seminar room E349 at 2pm. Our guest speaker will be Nilanjandev Bhaumik from the Indian Institute of Science (Bangalore, India).
More …Slow-roll Inflation at N3LO
Cosmic Inflation, the most favoured scenario of the early Universe, implies that all forms of matter and radiation observed today are the outcome of quantum fluctuations occurring around the event horizon of a exponentially fast accelerating space-time. Clearing the ground for the incoming spatial and ground based cosmological observations, Pierre and Christophe have derived, at an unprecedented level of precision, the shape of the expected power spectra of both the quantum-generated gravitational waves and curvature perturbations.
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