False vacuum decay beyond the quadratic approximation: summation of
non-local self-energies
False vacuum decay beyond the quadratic approximation: summation of
non-local self-energies
Using the 2PI effective action formalism, we study false vacuum decay beyond the quadratic approximation of the path integral. We derive a coupled system of equations for the bounce and the propagator, and we compute a semi-analytic expression for the self-energy of a real scalar field with cubic and quartic …