Numerical study of Q-ball formation in gravity mediation
Numerical study of Q-ball formation in gravity mediation
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DOI：
10.1088/1475-7516/2010/06/008
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发表时间：
2010-03
影响因子：
6.4
通讯作者：
T. Hiramatsu;M. Kawasaki;F. Takahashi
中科院分区：
文献类型：
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作者：
T. Hiramatsu;M. Kawasaki;F. Takahashi
我们研究Q球的形成在膨胀的宇宙在1D，2D和3D晶格模拟。我们获得了详细的Q球电荷分布，并发现该分布在Q3 Dpeak = 1.9 × 10−2处达到峰值（|Φin|/m）2，比现有结果大约60%。基于数值模拟，我们讨论了Q球的形成过程。并对电荷分布可能偏离以往实验结果的问题作了评述。
We study Q-ball formation in the expanding universe on 1D, 2D and 3D lattice simulations. We obtain detailed Q-ball charge distributions, and find that the distribution is peaked at Q3Dpeak ≃ 1.9 × 10−2(|Φin|/m)2, which is greater than the existing result by about 60%. Based on the numerical simulations, we discuss how the Q-ball formation proceeds. Also we make a comment on possible deviation of the charge distributions from what was conjectured in the past.