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arXiv 2203.03566nlin.PSnlin.SI
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聚焦NLS孤立子和呼吸子气体谱理论的最新发展:平均密度、通量和某些亚纯微分的热力学极限;周期性气体

Recent developments in spectral theory of the focusing NLS soliton and breather gases: the thermodynamic limit of average densities, fluxes and certain meromorphic differentials; periodic gases

Alexander Tovbis, Fudong Wang

摘要:

本文考虑一维可积聚焦非线性薛定谔方程(fNLS)的孤子和呼吸气体。通过研究fNLS有限能隙解的热力学极限,我们得到了这些气体的平均密度和通量。建立了准动量、准能量的热力学极限及其与相应的$g$ -函数的联系。然后,我们引入周期fNLS气体的概念,并计算它们的平均密度,通量和热力学极限的亚纯微分。某些精度估计所获得的结果也包括在内。我们的结果为G. El和A. Tovbis,Phys. Rev. E,2020。

英文摘要:

In this paper we consider soliton and breather gases for one dimensional integrable focusing Nonlinear Schrödinger Equation (fNLS). We derive average densities and fluxes for such gases by studying the thermodynamic limit of the fNLS finite gap solutions. Thermodynamic limits of quasimomentum, quasienergy and their connections with the corresponding $g$-functions were also established. We then introduce the notion of periodic fNLS gases and calculate for them the average densities, fluxes and thermodynamic limits of meromorphic differentials. Certain accuracy estimates of the obtained results are also included. Our results constitute another step towards the mathematical foundation for the spectral theory of fNLS soliton and breather gases that appeared in work of G. El and A. Tovbis, Phys. Rev. E, 2020.

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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