20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Pseudoscalar-photon mixing in an expanding Universe

Not scheduled
Dauphine (Alpes Congrès - Alpexpo)


Alpes Congrès - Alpexpo



Dr Subhayan Mandal (University Of Liege)


We establish the equation of motion of pseudoscalar particles coupled to an electromagnetic field in a classical gravitational background through the use of conformal time and flat geometry. We show that in general the expansion of the universe leads to larger mixing than in a stationary universe. We also show that for a broad range of parameters, one can obtain a resonance mixing, i.e. a region in which the mixing becomes maximum.

Primary author

Dr Subhayan Mandal (University Of Liege)


Prof. Jean-Rene Cudell (University Of Liege)

Presentation Materials