165 citations · 490 across the 14 of their papers we have counts for
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How Heavy Can Moduli Be?
Mehrdad Mirbabayi, Giovanni Villadoro
In Kaluza-Klein (KK) compactification of gravitational theories, moduli fields, which are scalar fields associated to the deformations of the compact manifold, are typically lighte…
An infrared bound on the ultraviolet bounce
Mehrdad Mirbabayi, Giovanni Villadoro
Sometimes a local minimum is known to be a metastable vacuum inside the low-energy EFT, but the true vacuum lies outside, and the bounce solution mediating the decay cannot be foun…
Theory II: The Broken Phase Beyond NNNN(NNNN)LO
Marco Serone, Gabriele Spada, Giovanni Villadoro
We extend the study of the two-dimensional euclidean theory initiated in ref. [1] to the broken phase. In particular, we compute in perturbation theory up to N$…
Theory I: The Symmetric Phase Beyond NNNNNNNNLO
Marco Serone, Gabriele Spada, Giovanni Villadoro
Perturbation theory of a large class of scalar field theories in can be shown to be Borel resummable using arguments based on Lefschetz thimbles. As an example we study in de…
The Power of Perturbation Theory
Marco Serone, Gabriele Spada, Giovanni Villadoro
We study quantum mechanical systems with a discrete spectrum. We show that the asymptotic series associated to certain paths of steepest-descent (Lefschetz thimbles) are Borel resu…
Instantons from Perturbation Theory
Marco Serone, Gabriele Spada, Giovanni Villadoro
In quantum mechanics and quantum field theory perturbation theory generically requires the inclusion of extra contributions non-perturbative in the coupling, such as instantons, to…