206 citations · 917 across the 24 of their papers we have counts for
24 papers
Quantum fields on curved spacetimes and a new look at the Unruh effect
Ugo Moschella, Richard Schaeffer
We describe a new viewpoint on canonical quantization of linear fields on a general curved background that encompasses and generalizes the standard treatment of canonical QFT given…
A note on canonical quantization of fields on a manifold
Ugo Moschella, Richard Schaeffer
We propose a general construction of quantum states for linear canonical quantum fields on a manifold, which encompasses and generalizes the "standard" procedures existing in textb…
Quantum Theory on Lobatchevski Spaces
Ugo Moschella, Richard Schaeffer
In this paper we set up a general formalism to deal with quantum theories on a Lobatchevski space, i.e. a spatial manifold that is homogeneous, isotropic and has negative curvature…
Constraints on Dark Matter interactions from structure formation: Damping lengths
Celine Boehm, Richard Schaeffer
(Shortened) Weakly Interacting Massive Particles are often said to be the best Dark Matter candidates. Studies have shown however that rather large Dark Matter-photon or Dark Matte…
The phase-diagram of the IGM and the entropy floor of groups and clusters: are clusters born warm?
P. Valageas, R. Schaeffer, J. Silk
We point out that two problems of observational cosmology, the facts i) that > 60% of the baryonic content of the universe is not observed at z=0 and ii) that the properties of sma…
Constraining the strength of Dark Matter Interactions from Structure Formation
Celine Boehm, Pierre Fayet, Richard Schaeffer
We discuss the damping of primordial dark matter fluctuations, taking into account explicitly the interactions of dark matter - whatever their intensity - both with itself and with…