Cosmology in the Einstein-Electroweak Theory and Magnetic Fields
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概要
- 論文の詳細を見る
In the SU(2)_L×U(1)_Y standard electroweak theory coupled with the Einstein gravity, new topological configurations naturally emerge, if the spatial section of the universe is globally a three-sphere (S^3) with a small radius. The SU(2)_L gauge fields and Higgs fields wrap the space nontrivially, residing at or near a local minimum of the potential. As the universe expands, however, the shape of the potential rapidly changes and the local minimum eventually disappears. The fields then start to roll down towards the absolute minimum. In the absence of the U(1)_Y gauge interaction the resulting space is a homogeneous and isotropic S^3, but the U(1)_Y gauge interaction necessarily induces anisotropy while preserving the homogeneity of the space. Large magnetic fields are generically produced over a substantial period of the rolling-over transition. The magnetic field configuration is characterized by the Hopf map.
- 理論物理学刊行会の論文
- 2002-07-25
著者
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HOSOTANI Yutaka
Department of Physics, Osaka University
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Takahiro Kubota
Department Of Physics Osaka University
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Kubota Takahiro
Department Of Physiology Ii Osaka Medical College
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Kubota Takahiro
Department Of Drug Metabolism And Biopharmaceutics Faculty Of Pharmacy Chiba Institute Of Science
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Hosotani Y
Department Of Physics Osaka University
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Hosotani Yutaka
Department Of Physics Osaka University
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EMOTO Hiroki
Department of Physics, Osaka University
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Emoto Hiroki
Department Of Physics Osaka University
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HOSOTANI Yutaka
Department of Physics, University of Tokyo
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