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arXiv 0712.0614hep-thhep-phnlin.PS
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振荡器和畴壁

Oscillons and Domain Walls

Mark Hindmarsh, Petja Salmi

摘要:

振荡,极长寿命的本地化振荡的标量场,被证明是由不断发展的畴壁网络在二维空间的四次理论。利用经典的零动量谱函数研究了频率空间中的声子,得到了声子速度分布的近似信息。为了获得一些洞察到稀释的畴壁所产生的介子“气体”,我们准备了一个密度更大的气体填充模拟体积与介子推动随机方向。我们完成了研究,通过重新访问碰撞之间的相互作用和相互作用和畴壁,表明在后一种情况下,他们可以直接通过最小的失真。

英文摘要:

Oscillons, extremely long-lived localized oscillations of a scalar field, are shown to be produced by evolving domain wall networks in quartic theory in two spatial dimensions. We study the oscillons in frequency space using the classical spectral function at zero momentum, and obtain approximate information of their velocity distribution. In order to gain some insight onto the dilute oscillon 'gas' produced by the domain walls, we prepare a denser gas by filling the simulation volume with oscillons boosted in random directions. We finish the study by revisiting collisions between oscillons and between an oscillon and a domain wall, showing that in the latter case they can pass straight through with minimal distortion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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