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Probing Planckian physics: Resonant production of particles during inflation and features in the primordial power spectrum
Physical Review D, Particles and fields
The phenomenon of resonant production of particles after inflation has received much attention in the past few years. In a new application of resonant production of particles, we consider the effect of a resonance during inflation. We show that if the inflaton is coupled to a massive particle, resonant production of the particle during inflation modifies the evolution of the inflaton, and may leave an imprint in the form of sharp features in the primordial power spectrum. Precision measurementsdoi:10.1103/physrevd.62.043508 fatcat:oo6kp3r6krctfe2wxu3qui2qae