79 citations · 194 across the 6 of their papers we have counts for
3 papers · 1 filter
Quantum fields without Wick rotation
Alessio Baldazzi, Roberto Percacci, Vedran Skrinjar
We discuss the calculation of one-loop effective actions in Lorentzian spacetimes, based on a very simple application of the method of steepest descent to the integral over the fie…
Wicked metrics
Alessio Baldazzi, Roberto Percacci, Vedran Skrinjar
There are various ways of defining the Wick rotation in a gravitational context. There are good arguments to view it as an analytic continuation of the metric, instead of the coord…
Split Weyl transformations in quantum gravity
Carlos M. Nieto, Roberto Percacci, Vedran Skrinjar
We discuss various realizations of the Weyl group in the background field expansion of quantum gravity, in the presence of a cutoff, as required in applications of the functional r…