Non-Gaussianities in extended D-term inflation (2007)
Bernardeau, Francis, Brunier, Tristan
We explore extensions of hybrid inflationary models in the context of supersymmetric D-term inflation. We point out that a large variety of inflationary scenarios can be encountered when the field...
Models of inflation with primordial non-Gaussianities (2006)
Bernardeau, Francis, Brunier, Tristan, Uzan, Jean-Philippe
We present a class of models in which the primordial metric fluctuations do not necessarily obey Gaussian statistics. These models are realizations of mechanisms in which non-Gaussianity is first...
High order correlation functions for self interacting scalar field in de Sitter space (2005)
Bernardeau, Francis, Brunier, Tristan, Uzan, Jean-Philippe
We present the expressions of the three- and four-point correlation functions of a self interacting light scalar field in a de Sitter spacetime at tree order respectively for a cubic and a quartic...
Constraints on mode couplings and modulation of the CMB with WMAP data (2004)
Prunet, Simon, Uzan, Jean-Philippe, Bernardeau, Francis, Brunier, Tristan
We investigate a possible asymmetry in the statistical properties of the cosmic microwave background temperature field and to do so we construct an estimator aiming at detecting a dipolar modulation....
High order correlation functions for self interacting scalar field in de Sitter space (2003)
Bernardeau, Francis, Brunier, Tristan, Uzan, Jean-Philippe
We present the expressions of the three- and four-point correlation functions of a self interacting light scalar field in a de Sitter spacetime at tree order respectively for a cubic and a quartic...
High order correlation functions for self interacting scalar field in de Sitter space (2003)
Bernardeau, Francis, Brunier, Tristan, Uzan, Jean-Philippe
We present the expressions of the three- and four-point correlation functions of a self interacting light scalar field in a de Sitter spacetime at tree order respectively for a cubic and a quartic...
High order correlation functions for self interacting scalar field in de Sitter space (2003)
Bernardeau, Francis, Brunier, Tristan, Uzan, Jean-Philippe
We present the expressions of the three- and four-point correlation functions of a self interacting light scalar field in a de Sitter spacetime at tree order respectively for a cubic and a quartic...