2 papers
astro-ph.CO2024
Small noise expansion of stochastic inflation
Diego Cruces, Cristiano Germani, Amin Nassiri-Rad +1
By introducing the small noise expansion techniques, we show that the fully nonlinear (non-Markovian) stochastic inflationary system, may be re-cast in terms of an infinite set of…
gr-qc2018
Failure of the stochastic approach to inflation beyond slow-roll
Diego Cruces, Cristiano Germani, Tomislav Prokopec
After giving a pedagogical review we clarify that the stochastic approach to inflation is generically reliable only at zeroth order in the (geometrical) slow-roll parameter i…