PIRSA:09070010

Video URL

https://pirsa.org/09070010

Non-Gaussianity from non-equilibrium physics

Rajantie, A. (2009). Non-Gaussianity from non-equilibrium physics. Perimeter Institute for Theoretical Physics. https://pirsa.org/09070010

Rajantie, Arttu. Non-Gaussianity from non-equilibrium physics. Perimeter Institute for Theoretical Physics, Jul. 21, 2009, https://pirsa.org/09070010 

          @misc{ scivideos_PIRSA:09070010,
            doi = {10.48660/09070010},
            url = {https://pirsa.org/09070010},
            author = {Rajantie, Arttu},
            keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
            language = {en},
            title = {Non-Gaussianity from non-equilibrium physics},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2009},
            month = {jul},
            note = {PIRSA:09070010 see, \url{https://scivideos.org/index.php/pirsa/09070010}}
          }

Arttu Rajantie Imperial College London

Talk numberPIRSA:09070010
DOI10.48660/09070010
Source RepositoryPIRSA
Collection
Talk Type Conference
Subject

Abstract

Non-equilibrium processes such as inflationary preheating or the ekpyrotic bounce can turn fluctuations of light scalar fields into potentially highly non-Gaussian curvature perturbations. I show how these perturbations can be calculated at fully non-linear level using lattice field theory simulations. As concrete examples, I present results for preheating in chaotic inflation and resonant curvaton decay.