Student Colloquium: Pedro Schwaller  Add To Calendar

  • Date(s): Wednesday, 1/19 3:00 PM to Wednesday, 1/19 5:00 PM
  • Speaker: Pedro Schwaller
  • Host:
  • Campus Address: 138 SES Science and Engineering South
  • Email:
"Leptogenesis as the origin of matter."

: After the Big Bang, matter and anti-matter are produced in equal amounts. However today the visible universe consists purely of matter, while no significant abundance of anti-matter is observed. This imbalance is commonly referred to as the Baryon Asymmetry of the Universe (BAU). 
In this presentation, the conditions to generate a baryon asymmetry in the evolution of the early universe are reviewed. Then Leptogenesis is introduced, a concrete mechanism to generate the BAU based on a model for neutrino masses. 
The prediction of the final baryon asymmetry in terms of a set of model parameters requires elements of general relativity, statistical mechanics and quantum field theory. I briefly introduce the essential ingredients. Then I discuss recent results from a unified approach to this problem, using methods of nonequilibrium quantum field theory.