Parametrized path approach to vacuum decay

  title={Parametrized path approach to vacuum decay},
  author={Florent Michel},
  journal={Physical Review D},
  • F. Michel
  • Published 29 November 2019
  • Physics, Mathematics
  • Physical Review D
We develop a new real-time approach to vacuum decay based on a reduction to a finite number of degrees of freedom. The dynamics is followed by solving a generalized Schrodinger equation. We first apply this method to a real scalar field in Minkowski space and compare the decay rate with that obtained by the instanton approach. The main difference is in the early time dynamics, where the decay is faster due to the tail of the wave function. We then apply it to a cold atom model recently proposed… 

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