Stability of Q-Balls and Catastrophe(Astrophysics and Relativity)
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概要
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We propose a practical method for analyzing stability of Q-balls for the whole parameter space, which includes the intermediate region between the thin-wall limit and thick-wall limit as well as Q-bubbles (Q-balls in false vacuum), using catastrophe theory. We apply our method to the two concrete models, V_3=m^2φ^2/2-μφ^3+λφ^4 and V_4=m^2φ^2/2-λφ^4+φ^6/M^2. We find that V_3 and V_4 Models fall into fold catastrophe and cusp catastrophe, respectively, and their stability structures are quite different from each other.
- 理論物理学刊行会の論文
- 2008-06-25
著者
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SASAKI Misao
Yukawa Institute for Theoretical Physics, Kyoto University
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SAKAI NOBUYUKI
Department of Chemical Engineering, Faculty of Engineering, Niigata University
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Sasaki Misao
Yukawa Institute For Theoretical Physics Kyoto University
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Sakai Nobuyuki
Department Of Education Yamagata University
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Sakai Nobuyuki
Department Of Applied Chemistry Faculty Of Engineering The University Of Tokyo
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SASAKI Misao
Yukawa Institute for Theoretical Physics, Kyoto University:Korea Institute for Advanced Study
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