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arXiv 2409.05930hep-thhep-phnucl-th
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这些是准正规模式吗?

Are these quasi-normal modes?

Gustavo Godinho, Willians Barreto

AI总结:

本文研究Bjorken流演化中压强各向异性的最低准正规模式,通过减去流体力学吸引子进行数值提取,并分析了Navier-Stokes、二阶和Borel吸引子在从远离平衡到接近平衡各阶段的作用。

摘要:

我们讨论了如何数值提取与Bjorken流演化至平衡过程中压强各向异性相关联的预期最低准正规模式(QNM)。该QNM通过减去流体力学吸引子即可轻松解码,并与其他作者的计算结果进行了比较。在瞬态演化接近预期最低QNM之后,系统在晚期进入一个纯虚频率的尾部。我们分析了Navier-Stokes、二阶和Borel吸引子在演化各阶段的相关性,该演化从远离平衡开始,到接近平衡结束。

英文摘要:

We discuss how to extract numerically the expected lowest quasi-normal mode (QNM) associated with the pressure anisotropy for a Bjorken flux evolution to equilibrium. This QNM was easily decoded subtracting the hydrodynamical attractors and was compared with other authors calculations. After evolutions with transients close to the expected lowest QNM the system goes to a tail (pure imaginary frequency) for late times. We analyze the relevance of Navier-Stokes, second order and Borel attractors at each stage of the evolution, which begins far-from-equilibrium and ends close to equilibrium.

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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