Contact
Vincent Boucher
Position
Former member
Member from September 2003 to April 2013
Current position: Partner at B12 Consulting
Member from September 2003 to April 2013
Current position: Partner at B12 Consulting
Personal homepage
Links
PhD Thesis
Sur la variation des constantes de Newton et d'Einstein. July 4th 2012. Advisor: Jean-Marc Gérard.
Projects
Research directions:
Active projects
Non-active projects
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.
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 IRMP
All my publications on Inspire
Number of publications as IRMP member: 4
Number of publications as IRMP member: 4
2010
CP3-10-26: Introducing the Dark Energy Universe Simulation Series (DEUSS)
CP3-10-04: Imprints of dark energy on cosmic structure formation: II) Non-Universality of the halo mass function
2009
CP3-09-10: Imprints of Dark Energy on Cosmic Structure Formation I) Realistic Quintessence Models and the Non-Linear Matter Power Spectrum