Vincent Boucher

Former member
Member from September 2003 to April 2013
Current position: Partner at B12 Consulting

Personal homepage
Research directions:
Cosmology and General Relativity

Active projects
Scalar-tensor theories of gravitation
Jean-Marc Gérard

The strong equivalence principle (SEP) does not hold anymore in various extensions of General Relativity. Its violations can be revealed by the non-universality of free-falling for compact objects and we have developed a generic and effective way to test the SEP in the Cosmic Microwave Background (CMB). A violation of the SEP indeed alters the amplitude of the acoustic oscillations in the primeval plasma. Using the WMAP data, we have contrained a possible SEP violation for the baryons.

Our interests are also focused on the scalar-tensor theories of gravitation and their cosmologies. In a more specific way, we are currently studying a model where the scalar sector is conformally invariant. The effective fluid related to the non-minimally coupled scalar field differs from the other cosmological fluids of radiation by its very particular anisotropic pressure and we are studying its impact on the CMB anisotropies by modifying the CAMB code.

Non-active projects
Publications in CP3
All my publications on Inspire

Number of publications as CP3 member: 4 Download BibTeX


CP3-10-26: Introducing the Dark Energy Universe Simulation Series (DEUSS)
Y. Rasera, J-M. Alimi, J. Courtin, F. Roy, P-S. Corasaniti, A. Füzfa and V. Boucher

[Abstract] [PDF] [Journal] [Dial]
Invisible Universe International Conference, UNESCO-Paris, 2009. DEUS Consortium reference paper.
Contribution to proceedings. July 15.
CP3-10-04: Imprints of dark energy on cosmic structure formation: II) Non-Universality of the halo mass function
Jérôme Courtin, Yann Rasera, Jean-Michel Alimi, Pier-Stefano Corasaniti, Vincent Boucher, André Füzfa

[Abstract] [PDF] [Journal] [Dial]
Published in MNRAS (410) 1911, 2011.
Refereed paper. January 20.


CP3-09-10: Imprints of Dark Energy on Cosmic Structure Formation I) Realistic Quintessence Models and the Non-Linear Matter Power Spectrum
Jean-Michel Alimi, André Füzfa, Vincent Boucher, Yann Rasera, Jérôme Courtin, Pier-Stefano Corasaniti

[Abstract] [PDF] [Journal] [Dial]
Published in the Monthly Notices of the Royal Astronomical Society, 401, 775-790 (2010).
Refereed paper. March 31.


CP3-05-10: A cosmological test for general relativity
V. Boucher

[Abstract] [PDF]
Published in Gravitation & Cosmology 11 (2005) 71-74

Contribution to proceedings. September 26.