3 papers
hep-th2024
Gauge invariance and generalised regularisation
Antonio Padilla, Robert G. C. Smith
We generalise the regularisation scheme in order to develop a framework for systematically studying regularisation of loops in quantum field theory. This allows us to "solve" a…
hep-th2024
On de Sitter vacua in O(d,d) invariant cosmology
Yang Liu, Antonio Padilla, Paul M. Saffin +1
We perform a thorough analysis of de Sitter vacua in O(d,d) invariant cosmologies. Starting with a homogeneous and isotropic framework we examine conditions for the existence of su…
hep-th2024
Smoothed asymptotics: from number theory to QFT
Antonio Padilla, Robert G. C. Smith
Inspired by the method of smoothed asymptotics developed by Terence Tao, we introduce a new ultra-violet regularisation scheme for loop integrals in quantum field theory which we c…