非局部模型在膨胀过程中的磁生成

IF 0.6 Q4 PHYSICS, MULTIDISCIPLINARY

Ukrainian Journal of Physics Pub Date : 2023-10-02 DOI:10.15407/ujpe68.10.647

E. V. Gorbar, T. Gorkavenko, V. Gorkavenko, O. M. Teslyk

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引用次数: 0

摘要

研究了麦克斯韦作用中具有非局部形式因子的电磁模型在膨胀过程中磁场的产生。推导并求解了电磁场的运动方程。研究发现，在没有与胀气场相互作用的情况下，非局部形式因子导致的共形对称破缺不会导致胀气过程中磁场的产生。如果存在这种耦合，那么与不存在非局部形式因子的情况相比，形式因子的存在会抑制原始磁场的产生。

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Magnetogenesis in Non-Local Models during Inflation

The generation of magnetic fields during the inflation in an electromagnetic model with a non-local form factor in Maxwell’s action is studied. The equations of motion for the electromagnetic field are derived and solved. It is found that the conformal symmetry breaking due to the non-local form factor does not lead to the generation of magnetic fields during the inflation in the absence of an interaction with the inflaton field. If such a coupling takes place, then the presence of the form factor inhibits the generation of primordial magnetic fields compared to the case where the non-local form factor is absent.

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来源期刊

Ukrainian Journal of Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.20

自引率

20.00%

发文量

244

期刊介绍： Ukrainian Journal of Physics is the general physics edition of the Department of Physics and Astronomy of the National Academy of Sciences of Ukraine. The journal publishes original papers and reviews in the fields of experimental and theoretical physics.