A bstract We present a Python package BubbleDet for computing one-loop functional
determinants around spherically symmetric background fields. This gives the next-to-leading …

The standard vacuum bounce formalism suffers from inconsistencies when applied to
thermal bubble nucleation, for which ad hoc workarounds are commonly adopted …

A bstract Scalar dark matter (DM), and axions in particular, have an irreducible abundance
of particles produced by freeze-in due to portal interactions with the Standard Model plasma …

A bstract We present the calculation of the Feynman path integral in real time for tunneling in
quantum mechanics and field theory, including the first quantum corrections. For this …

We develop a method for accurately calculating vacuum decay rates beyond the thin-wall
regime in pure scalar field theory at the one-loop level of the effective action. It accounts for …

In the context of false vacuum decay at zero temperature, it is well known that bubbles
expand with uniform proper acceleration. We show that this uniformly accelerating …

A bstract We study the dissipation of oscillating scalar backgrounds in a spatially flat
Friedmann-Lemaître-Robertson-Walker universe using non-equilibrium quantum field …

A bstract Assuming a toroidal space with finite volume, we derive analytically the full one-
loop vacuum energy for a scalar field tunnelling between two degenerate vacua, taking into …

We discuss an exact false vacuum decay rate at one loop for a real and complex scalar field
in a quartic-quartic potential with two tree-level minima. The bounce solution is used to …

Dark Matter, if represented by a $ Z_2 $-symmetric scalar field, can manifest as both
particles and condensates. In this paper, we study the evolution of an oscillating …