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 …

We are launching FindBounce, a Mathematica package for the evaluation of the Euclidean
bounce action that enters the decay rate of metastable states in quantum and thermal field …

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 …

We present SimpleBounce, a C++ package for finding the bounce solution for the false
vacuum decay. This package is based on a flow equation which is proposed by the author …

A bstract We study the stability of the electroweak vacuum in the supersymmetric (SUSY)
standard model (SM), paying particular attention to its relation to the SUSY contribution to …

Saddle-point configurations, such as the Euclidean bounce and sphalerons, are known to
be difficult to find numerically. In this letter we study a new method, Quartic Gradient Flow, to …

We show that in the SU (2) Georgi-Glashow model,'t Hooft–Polyakov monopoles are
produced by a classical instability in magnetic fields above the Ambjørn-Olesen critical field …

Motivated by the recent work of Chigusa, Moroi, and Shoji, we propose a new simple
gradient flow equation to derive the bounce solution which contributes to the decay of the …

We consider a single real scalar field in flat spacetime with a polynomial potential up to
$\phi^ 4$, that has a local minimum, the false vacuum, and a deeper global minimum, the …

We present the results of an explicit numerical computation of a novel instanton in Georgi-
Glashow SU (2) theory. The instanton is physically relevant as a mediator of Schwinger …