75 citations · 249 across the 15 of their papers we have counts for
3 papers · 1 filter
Perfect discretizations as a gateway to one-loop partition functions for 4D gravity
Seth K. Asante, Bianca Dittrich
Lattice actions and amplitudes that perfectly mirror continuum physics are known as perfect discretizations. Such perfect discretizations naturally preserve the symmetries of the c…
Complex actions and causality violations: Applications to Lorentzian quantum cosmology
Seth K. Asante, Bianca Dittrich, José Padua-Argüelles
For the construction of the Lorentzian path integral for gravity one faces two main questions: Firstly, what configurations to include, in particular whether to allow Lorentzian me…
Effective Spin Foam Models for Lorentzian Quantum Gravity
Seth K. Asante, Bianca Dittrich, José Padua-Arguelles
Making the Lorentzian path integral for quantum gravity well-defined and computable has been a long standing challenge. In this work we adopt the recently proposed effective spin f…