401 citations · 3.9k across the 71 of their papers we have counts for
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Inflationary stochastic anomalies
Lucas Pinol, Sébastien Renaux-Petel, Yuichiro Tada
The stochastic approach aims at describing the long-wavelength part of quantum fields during inflation by a classical stochastic theory. It is usually formulated in terms of Langev…
Flattened non-Gaussianities from the effective field theory of inflation with imaginary speed of sound
Sebastian Garcia-Saenz, Sébastien Renaux-Petel
Inflationary perturbations in multi-field theories can exhibit a transient tachyonic instability as a consequence of their non-trivial motion in the internal field space. When an e…
Primordial fluctuations and non-Gaussianities in sidetracked inflation
Sebastian Garcia-Saenz, Sébastien Renaux-Petel, John Ronayne
Heavy scalar fields can undergo an instability during inflation as a result of their kinetic couplings with the inflaton. This is known as the geometrical destabilization of inflat…