Sphalerons of O(3) Nonlinear Sigma Model on a Circle : Particles and Fields
スポンサーリンク
概要
- 論文の詳細を見る
A series of saddle point solutions of O(3) nonlinear sigma model with symmetry breaking term in 1+1 dimensions are obtained by imposing boundary condition either periodic or partially antiperiodic (O(3) sphalerons on a circle). Under the periodic boundary condition, classical features of the O(3) sphalerons are similar to scalar sphalerons of φ^4 model on a circle by Manton and Samols. Under the partially antiperiodic boundary condition, the lowest of the O(3) sphalerons coincides in the limit of infinite spatial domain with the O(3) sphaleron by Mottola and Wipf. In particular, zero and negative modes of them are examined in detail. An estimate of transition rate over the lowest O(3) sphaleron at finite temperature is made, and some remarks on simulating the transition on a lattice are given. A correspondence between these O(3) sphalerons on a circle and a series of (possible) classical solutions of SU(2) gauge-Higgs model, to which the electroweak sphaleron S and new sphaleron S* belong, is discussed.
- 理論物理学刊行会の論文
- 1990-01-25
著者
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Funakubo K
Department Of Physics Saga University
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OTSUKI Shoichiro
Department of Physics Nagoya University
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TOYODA Fumihiko
School of Humanity-Oriented Science and Engineering, Kinki University
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TOYODA Fumihiko
Kyushu School of Engineering, Kinki University
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OTSUKI Shoichiro
Kyushu School of Engineering, Kinki University
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OTSUKI Shoichiro
Kyusyu School of Engineering, Kinki University
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TOYODA Fumihiko
Kyusyu School of Engineering, Kinki University
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TOYODA Fumihiko
Department of Liberal Arts, Kinki University
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FUNAKUBO Koichi
Institute for Nuclear study, University of Tokyo
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Otsuki S
Kyushu School Of Engineering Kinki University
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Otsuki Shoichiro
Department Of Physics Kyoto University
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Toyoda F
School Of Humanity-oriented Science And Engineering Kinki University
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Toyoda Fumihiko
Department Of Electrical And Communication Engineering Kinki University Of School Of Humanity-orient
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FUNAKUBO Koichi
Department of Physics, Saga University
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FUNAKUBO Koichi
Department of Physicas
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OTSUKI Shoichiro
Department of Liberal Arts, Kinki University
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OTSUKI Shoichiro
Department of Physics, Kyusyu University
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TOYODA Fumihiko
Department of Electrical and Communication Engineering, Kinki University of School of Humanity-Oriented Science and Engineering
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