On Non-Gaussianities in Two-Field Poly-Instanton Inflation

Understand

In the context of Type IIB LARGE volume orientifold setup equipped with poly-instanton corrections, the standard single-field poly-instanton inflation driven by a 'Wilson' divisor volume modulus is generalized by the inclusion of respective axion modulus.

• This two-field dynamics results in a "Roulette" type inflation with the presence of several inflationary trajectories which could produce 50 (or more) e-foldings.
• The evolution of various trajectories along with physical observables are studied.
• The possibility of generating primordial non-Gaussianities in the slow-roll as well as in the beyond slow-roll region is investigated.