We consider two different toy cosmological models based on two fields (one normal scalar and one phantom) realizing the same evolution of the Bang-to-Rip type. One of the fields (pseudoscalar) interacts with the magnetic field breaking the conformal invariance of the latter. The effects of the amplification of cosmic magnetic fields are studied and it is shown that the presence of such effects can discriminate between different cosmological models realizing the same global evolution of the universe.
A.A. Andrianov, F. Cannata, A.Yu. Kamenshchik, D. Regoli (2008). Two-field cosmological models and large-scale cosmic magnetic fields. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 0810, 019-019 [10.1088/1475-7516/2008/10/019].
Two-field cosmological models and large-scale cosmic magnetic fields
KAMENCHTCHIK, ALEXANDR;REGOLI, DANIELE
2008
Abstract
We consider two different toy cosmological models based on two fields (one normal scalar and one phantom) realizing the same evolution of the Bang-to-Rip type. One of the fields (pseudoscalar) interacts with the magnetic field breaking the conformal invariance of the latter. The effects of the amplification of cosmic magnetic fields are studied and it is shown that the presence of such effects can discriminate between different cosmological models realizing the same global evolution of the universe.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
