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arXiv 1606.09332nlin.PSphysics.optics
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分数维时空可达孤子

Spatiotemporal accessible solitons in fractional dimensions

Wei-Ping Zhong, Milivoj R. Belić, Boris A. Malomed, Yiqi Zhang, Tingwen Huang

摘要:

本文研究了分数维非局域非线性介质中“可及”型孤子的解,对于有效维数为$2<D\le3$的空间中的自陷模,其谐振子势的强度与波场的总功率成正比。通过径向、轨道和方位角量子数$(n,l,m)$的组合对解进行分类。它们具有不同阶数的涡旋和项链形环的同轴集合,并且可以精确地用特殊函数来表示,包括Gegenbauer多项式、相关的Laguerre多项式和相关的Legendre函数。通过直接仿真验证了这些解决方案的有效性。该模型可以实现在各种物理设置模拟FD空间,特别是,它适用于量子阱中捕获的激子。

英文摘要:

We report solutions for solitons of the "accessible" type in globally nonlocal nonlinear media of fractional dimension (FD), viz., for self-trapped modes in the space of effective dimension $2<D\le3$ with harmonic-oscillator potential whose strength is proportional to the total power of the wave field. The solutions are categorized by a combination of radial, orbital and azimuthal quantum numbers $(n,l,m)$. They feature coaxial sets of vortical and necklace-shaped rings of different orders, and can be exactly written in terms of special functions that include Gegenbauer polynomials, associated Laguerre polynomials, and associated Legendre functions. The validity of these solutions is verified by direct simulation. The model can be realized in various physical settings emulated by FD spaces; in particular, it applies to excitons trapped in quantum wells.

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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