Large deviations in the early universe

HIGHLIGHTS

• who: Timothy Cohen and collaborators from the CERN, Geneva, Switzerland University of have published the research work: Large deviations in the early Universe, in the Journal: (JOURNAL) of 17/01/2023
• what: Concretely the authors investigate the regime of validity for the Fokker-Planck equation that governs stochastic inflation. This paper will explain how the tails of these distributions are determined by a new instantonlike1 saddle point.
• how: The authors argue that the large deviation principle can be used to diagnose when one must appeal to the fundamental description. The authors showed how . . .
  

   

  

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