Two-field cosmological models and large-scale cosmic magnetic fields

被引：5
作者：
Andrianov, Alexander A. [1 ,2 ,3 ]
Cannata, Francesco [4 ]
Kamenshchik, Alexander Y. [4 ,5 ,6 ]
Regoli, Daniele [4 ,5 ]
机构：
[1] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain
[2] Univ Barcelona, Inst Ciencies Cosmos ICCUB, E-08028 Barcelona, Spain
[3] St Petersburg State Univ, VA Fock Dept Theoret Phys, St Petersburg 198504, Russia
[4] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[5] Dipartimento Fis, I-40126 Bologna, Italy
[6] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 119334, Russia
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2008年 / 10期
关键词：
dark energy theory; magnetic fields; physics of the early universe;
D O I：
10.1088/1475-7516/2008/10/019
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 be used to discriminate between different cosmological models realizing the same global evolution of the universe.
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页数：15
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