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arXiv 1709.06387math.APmath-phmath.MP
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二维自洽Dirac方程的多重解

Multiple solutions for a self-consistent Dirac equation in two dimensions

William Borrelli

摘要:

利用变分法研究了石墨烯样品中电子输运的有效模型。证明了描述半经典电子动力学的薛定谔方程在WKB极限下存在无穷多个定态解.相互作用项由平均场、自洽势给出,自洽势是三维库仑势的迹。尽管非线性是4-齐次的,但由于算子$(-Δ)^{-\frac{1}{2}$的正则化性质,避免了与限制Sobolev嵌入$H^{\frac{1}{2}}(Ω,\mathbb{C})\rightarrow L^{4} (Ω,\mathbb{C})$相关的紧凑性问题。这也使我们能够证明解的光滑性。我们的证明是由直接的论证得出的。

英文摘要:

This paper is devoted to the variational study of an effective model for the electron transport in a graphene sample. We prove the existence of infinitely many stationary solutions for a nonlin-ear Dirac equation which appears in the WKB limit for the Schr{ö}dinger equation describing the semi-classical electron dynamics. The interaction term is given by a mean field, self-consistent potential which is the trace of the 3D Coulomb potential. Despite the nonlinearity being 4-homogeneous, compactness issues related to the limiting Sobolev embedding $H^{\frac{1}{2}}(Ω,\mathbb{C})\rightarrow L^{4} (Ω,\mathbb{C})$ are avoided thanks to the regular-ization property of the operator $(-Δ)^{-\frac{1}{2}$. This also allows us to prove smoothness of the solutions. Our proof follows by direct arguments.

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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