Browsing by Author "6fa67058-db7c-4b79-89af-4cda680d1552"

Now showing items 1-5 of 5

    • A generalized non-gaussian consistency relation for single field inflation 
      Bravo, R.; Mooij, Sander; Palma Quilodrán, Gonzalo; Pradenas Márquez, Bastián (Iop Publishing LTD, 2018-05)
      We show that a perturbed inflationary spacetime, driven by a canonical single scalar field, is invariant under a special class of coordinate transformations together with a field reparametrization of the curvature ...
    • Scale invariance of the primordial tensor power spectrum 
      Palma Quilodrán, Gonzalo; Pradenas Márquez, Bastián; Riquelme, Walter; Sypsas, Spyros (American Physical Society, 2017)
      Future cosmic microwave background polarization experiments will search for evidence of primordial tensor modes at large angular scales, in the multipole range 4≤≤50. Because in that range there is some mild evidence of ...
    • Slanted snaking of localized Faraday waves 
      Pradenas Márquez, Bastián; Araya, Isidora; Clerc Gavilán, Marcel; Falcón Beas, Claudio; Gandhi, Punit; Knobloch, Edgar (American Physical Society, 2017)
      We report on an experimental, theoretical, and numerical study of slanted snaking of spatially localized parametrically excited waves on the surface of a water-surfactant mixture in a Hele-Shaw cell. We demonstrate ...
    • Theoretical and observational characterization of primordial scales and symmetries 
      Pradenas Márquez, Bastián (Universidad de Chile, 2019)
      In this thesis, theoretical aspects of observables thrown by cosmic inflation were studied. In the first work, hypothetical feature correlations were studied in the inflationary scalar spectrum with features in the tensorial ...
    • Vanishing of local non-gaussianity in canonical single field inflation 
      Bravo, R.; Mooij, Sander; Palma Quilodrán, Gonzalo; Pradenas Márquez, Bastián (IOP Publishing, 2018-05)
      We study the production of observable primordial local non-Gaussianity in two opposite regimes of canonical single field inflation: attractor (standard single field slow-roll inflation) and non attractor (ultra slow-roll ...