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Minimal cut-off vacuum state constraints from CMB bispectrum statistics
P. Daniel Meerburg, Jan Pieter van der Schaar
In this short note we translate the best available observational bounds on the CMB bispectrum amplitudes into constraints on a specific scale-invariant New Physics Hypersurface (NP…
Bispectrum signatures of a modified vacuum in single field inflation with a small speed of sound
P. Daniel Meerburg, Jan Pieter van der Schaar, Mark G. Jackson
Deviations from the Bunch-Davies vacuum during an inflationary period can leave a testable imprint on the higher-order correlations of the CMB and large scale structures in the Uni…
Signatures of Initial State Modifications on Bispectrum Statistics
Pieter Daniel Meerburg, Jan Pieter van der Schaar, Pier Stefano Corasaniti
Modifications of the initial-state of the inflaton field can induce a departure from Gaussianity and leave a testable imprint on the higher order correlations of the CMB and large…