PIRSA:16030074

Dissipation during inflation

Peloso, M. (2016). Dissipation during inflation. Perimeter Institute. https://pirsa.org/16030074

Peloso, Marco. Dissipation during inflation. Perimeter Institute, Mar. 15, 2016, https://pirsa.org/16030074 

          @misc{ pirsa_PIRSA:16030074,
            doi = {10.48660/16030074},
            url = {https://pirsa.org/16030074},
            author = {Peloso, Marco},
            keywords = {Cosmology},
            language = {en},
            title = {Dissipation during inflation},
            publisher = {Perimeter Institute},
            year = {2016},
            month = {mar},
            note = {PIRSA:16030074 see, \url{https://pirsa.org}}
          }

Marco Peloso

University of Minnesota

Talk number
PIRSA:16030074
Collection
Talk Type
Subject
Abstract

I will discuss phenomena associated with particle production and field excitation during inflation. In the first part of the talk I will present several
signatures that can originate from the coupling of an axion inflaton to gauge fields. In the second part I will test the robustness of the standard
implications associated with the detection of a gravity wave (GW) signal at CMB scales, by discussing what conditions can allow a visible
sourced GW background that exceeds the vacuum one (without simultaneously overproduce scalar perturbations), and by providing a concrete
example. In the final part I will review the phenomenology of trapped inflation, which is an interesting and minimal mechanism where particle production
provides the main friction for the motion of the inflaton.