arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2502.09136hep-thmath-phmath.MPnlin.PS
收藏

来自 $Q$-球的振荡子

Oscillons from $Q$-balls

F. Blaschke, T. Romańczukiewicz, K. Sławińska, A. Wereszczyński

AI总结:

本文利用重整化群理论,从普适复场理论的$Q$-球在主导非线性阶导出(1+1)维振荡子,并将激发振荡子的振幅调制归因于两$Q$-球束缚态的形成。

摘要:

利用重整化群理论,我们表明在(1+1)维中的振荡子可以在主导非线性阶上从普适复场理论的$Q$-球获得。对于具有非零三次或四次项势能的情况,普适$Q$-球理论可由可积的复正弦-戈登模型很好地近似。这使我们能够将Fodor等人的通常微扰展开推广到最简单的未调制振荡子情形之外。具体而言,我们将激发振荡子的特征振幅调制解释为两$Q$-球(两振荡子)束缚态形成的结果。

英文摘要:

Using Renormalization Group Theory we show that oscillons in (1+1)-dimensions can be obtained, at the leading nonlinear order, from $Q$-balls of universal complex field theories. For potentials with a nonzero cubic or quartic term the universal $Q$-ball theory is well approximated by the integrable complex sine-Gordon model. This allows us to generalize the usual perturbative expansion by Fodor et. al. beyond the simplest unmodulated oscillon case. Concretely, we explain the characteristic amplitude modulations of excited oscillons as an effect of formation of a two-$Q$-ball (two-oscillon) bound state.

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。

↑