论文标题
由对称的扭结 - 安替克克散射产生的不对称性在退化的两场模型中
Asymmetry engendered by symmetric kink-antikink scattering in a degenerate two-field model
论文作者
论文摘要
在本文中，我们分析了$（1+1）$ - 尺寸的两场模型中的散射过程，其中特殊属性具有多种拓扑解决方案：i）一个具有较高静止质量的质量解决方案，其特征是嵌套缺陷（扭结内部的块），ii）其他四个具有较低的休息质量，变性，并在kink Inside Kink Inside Kink Inside kink Inside kink Inside中表征。我们研究了Kink-Antikink对称散射，在该散射中，扭结和安提京克具有更高的休息质量和相同的初始速度模量$ v $。散射的输出呈现出广泛的行为，例如纠结 - 安脚金对的an灭，辐射喷射的发射，振荡脉冲的产生以及拓扑部门的变化。我们表明，拓扑部门的变化受到青睐，并且在四个部门中只有两个是结果。此外，尽管能量变性，但最终状态的分布在相空间中是不对称的，是振动状态存在的影响。
In this paper we analyze the scattering process in a two-field model in $(1+1)$-dimensions, with the special property to have several topological solutions: i) one with higher rest mass, characterized by a nested defect (lump inside a kink), and ii) four others having lower rest mass, degenerated, and characterized by a kink inside kink. We investigate kink-antikink symmetric scattering, where the kink and antikink have higher rest mass and the same initial velocity modulus $v$. The output of scattering presents a wide range of behaviors, such as annihilation of the kink-antikink pair, the emission of radiation jets, the generation of oscillating pulses and the change of the topological sector. We show that the changing of the topological sector is favored, and only two of the four sectors are possible as outcomes. Moreover, despite the degeneracy in energy, the distribution of the final states is asymmetric in the phase space, being an effect of the presence of vibrational states.
