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Finite element study of the Lorentz model in metamaterials

机译:超材料中洛伦兹模型的有限元研究

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摘要

Metamaterials are materials with electromagnetic properties that originate from artificial sub-wavelength structures. Although the Lorentz metamaterial model has been used by physicists and electrical engineers, its mathematical properties have not been investigated yet. Also more robust and efficient algorithms for time-domain simulations are needed. In this paper, we initiate our work in this respect by developing some finite element schemes for solving the Lorentz model. Stability and error analysis are proved for these schemes, and 2-D numerical results justifying our theoretical results are presented.
机译:超材料是具有电磁特性的材料,这些材料源自人造的亚波长结构。尽管物理学家和电气工程师已经使用了Lorentz超材料模型,但尚未对其数学性质进行研究。还需要用于时域仿真的更健壮和有效的算法。在本文中,我们通过开发一些用于求解Lorentz模型的有限元方案来开始我们的工作。证明了这些方案的稳定性和误差分析,并给出了证明我们理论结果合理的二维数值结果。

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