3 papers
hep-th2026
Two point functions and quantum fields in the anti-de Sitter universe
Ugo Moschella
We construct a manifestly covariant and coordinate-free plane-wave representation of scalar two-point functions in -dimensional anti-de Sitter spacetime. The construction is bas…
hep-th2026
Effective potentials for de Sitter and anti de Sitter quantum fields
Alfio Bonanno, Sergio Luigi Cacciatori, Ugo Moschella
We derive a systematic treatment of one-loop effective potentials for interacting scalar fields in curved spacetimes, providing a general formula valid in arbitrary geometries and…
hep-th2025
Anti-de Sitter, plane waves and quantum field theory
Ugo Moschella
We present a new plane-wave expansion of the Wightman functions of anti de Sitter scalar fields and showcase its conceptual and technical importance in AdS quantum field theory. We…