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arXiv math-ph/0304017math-phmath.MPmath.SP
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三维Pauli算子在强非均匀磁场中的一致Lieb-Thirring不等式

Uniform Lieb-Thirring inequality for the three dimensional Pauli operator with a strong non-homogeneous magnetic field

Laszlo Erdos, Jan Philip Solovej

摘要:

泡利算符描述了自旋为1/2的非相对论量子粒子在磁场和外部势中的能量。给出了一个新的关于负特征值和的Lieb-Thirring型不等式。的主要特点相比,早期的结果是,在大的领域制度,目前的估计增长的最佳(第一)权力的磁场的强度。作为该方法的副产品,我们还获得了狄拉克算子的零能量本征函数的点态密度的最佳上界。主要的技术工具是:(i)一个新的局部化方案的一般类的二阶椭圆算子的预解式的平方;(ii)一个几何结构的狄拉克算子与恒定的磁场,近似原狄拉克算子在一个固定的场线的管状邻域。误差可能取决于磁场的规则性,但它们在场强上是均匀的。

英文摘要:

The Pauli operator describes the energy of a nonrelativistic quantum particle with spin 1/2 in a magnetic field and an external potential. A new Lieb-Thirring type inequality on the sum of the negative eigenvalues is presented. The main feature compared to earlier results is that in the large field regime the present estimate grows with the optimal (first) power of the strength of the magnetic field. As a byproduct of the method, we also obtain an optimal upper bound on the pointwise density of zero energy eigenfunctions of the Dirac operator. The main technical tools are: (i) a new localization scheme for the square of the resolvent of a general class of second order elliptic operators; (ii) a geometric construction of a Dirac operator with a constant magnetic field that approximates the original Dirac operator in a tubular neighborhood of a fixed field line. The errors may depend on the regularity of the magnetic field but they are uniform in the field strength.

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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