93 citations · 157 across the 4 of their papers we have counts for
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Conservation laws and scattering for de Sitter classical particles
S. Cacciatori, V. Gorini, A. Kamenshchik +1
Starting from an intrinsic geometric characterization of de Sitter timelike and lightlike geodesics we give a new description of the conserved quantities associated with classical…
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…
Lifetime of a massive particle in a de Sitter universe
Jacques Bros, Henri Epstein, Ugo Moschella
We study particle decay in de Sitter space-time as given by first order perturbation theory in an interacting quantum field theory. We show that for fields with masses above a crit…
AdS/CFT correspondence for n-point functions
M. Bertola, J. Bros, U. Moschella +1
We provide a new general setting for scalar interacting fields on the covering of a d+1-dimensional AdS spacetime. The formalism is used at first to construct a one-paramater famil…