PIRSA:08060180

Non-Gaussianities from modified initial states

(2008). Non-Gaussianities from modified initial states. Perimeter Institute. https://pirsa.org/08060180

Non-Gaussianities from modified initial states. Perimeter Institute, Jun. 06, 2008, https://pirsa.org/08060180 

          @misc{ pirsa_PIRSA:08060180,
            doi = {10.48660/08060180},
            url = {https://pirsa.org/08060180},
            author = {},
            keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
            language = {en},
            title = {Non-Gaussianities from modified initial states},
            publisher = {Perimeter Institute},
            year = {2008},
            month = {jun},
            note = {PIRSA:08060180 see, \url{https://pirsa.org}}
          }
Talk numberPIRSA:08060180
DOI10.48660/08060180
Collection
Talk Type Conference
Subject

Abstract

We consider the most general treatment of primordial non-Gaussianities, arising from modifying the initial state. Besides considering non-Gaussian effects due to subhorizon particle production, we parameterize the initial non-Gaussian features in terms of a Boundary Effective Field Theory (BEFT). Both effects contribute to the final result for the bispectrum, and we use this to put constraints on the initial state.