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.

Two-field cosmological models and large-scale cosmic magnetic fields / A.A. Andrianov; F. Cannata; A.Yu. Kamenshchik; D. Regoli. - In: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS. - ISSN 1475-7516. - STAMPA. - 0810:(2008), pp. 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.
2008
Two-field cosmological models and large-scale cosmic magnetic fields / A.A. Andrianov; F. Cannata; A.Yu. Kamenshchik; D. Regoli. - In: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS. - ISSN 1475-7516. - STAMPA. - 0810:(2008), pp. 019-019. [10.1088/1475-7516/2008/10/019]
A.A. Andrianov; F. Cannata; A.Yu. Kamenshchik; D. Regoli
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/62562
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