107 citations · 1.4k across the 80 of their papers we have counts for
3 papers · 1 filter
Approximate KMS states for scalar and spinor fields in Friedmann-Robertson-Walker spacetimes
Claudio Dappiaggi, Thomas-Paul Hack, Nicola Pinamonti
We construct and discuss Hadamard states for both scalar and Dirac spinor fields in a large class of spatially flat Friedmann-Robertson-Walker spacetimes characterised by an initia…
Dark Energy from Quantum Matter
Claudio Dappiaggi, Thomas-Paul Hack, Jan Möller +1
We study the backreaction of free quantum fields on a flat Robertson-Walker spacetime. Apart from renormalization freedom, the vacuum energy receives contributions from both the tr…
Deformations of quantum field theories on spacetimes with Killing vector fields
Claudio Dappiaggi, Gandalf Lechner, Eric Morfa-Morales
The recent construction and analysis of deformations of quantum field theories by warped convolutions is extended to a class of curved spacetimes. These spacetimes carry a family o…