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Dynamics of Symmetry Breaking and Tachyonic Preheating
Gary Felder, Juan Garcia-Bellido, Patrick B. Greene +3
We reconsider the old problem of the dynamics of spontaneous symmetry breaking using 3d lattice simulations, and develop a theory of tachyonic preheating, which occurs due to the s…
Astrophysics and Cosmology
Juan Garcia-Bellido
These notes are intended as an introductory course for experimental particle physicists interested in the recent developments in astrophysics and cosmology. I will describe the sta…
Electroweak baryogenesis from preheating
Juan Garcia-Bellido
The origin of the matter-antimatter asymmetry remains one of the most fundamental problems of cosmology. In this talk I present a novel scenario for baryogenesis at the electroweak…
Fermion production during preheating after hybrid inflation
Juan Garcia-Bellido, Silvia Mollerach, Esteban Roulet
At the end of inflation, the coherent oscillations of the inflaton field may resonantly amplify the long wavelength modes of both bosons and fermions coupled to it. We study the re…