258 citations · 2.2k across the 59 of their papers we have counts for
4 papers · 1 filter
The quantum vacuum as the origin of the speed of light
Marcel Urban, Francois Couchot, Xavier Sarazin +1
We show that the vacuum permeability and permittivity may originate from the magnetization and the polarization of continuously appearing and disappearing fermion pairs. We then sh…
Does the speed of light depend upon the vacuum ?
M. Urban, F. Couchot, X. Sarazin
We propose a quantum model for the vacuum filled of virtual particle pairs. The main originality of this model is to define a density and a life-time of the virtual particles. Comp…
Corpuscular description of the speed of light in a homogeneous medium
Marcel Urban, Francois Couchot, Sylvie Dagoret Campagne +1
We are used to describe the detection of light in terms of particles and its propagation from the source to the detection, by waves. For instance, the slowing down of light in a tr…
About the connection between vacuum birefringence and the light-light scattering amplitude
J. Haissinski, S. Dagoret, M. Urban +1
Birefringence phenomena stemming from vacuum polarization are revisited in the framework of coherent scattering. Based on photon-photon scattering, our analysis brings out the dire…