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arXiv 1607.02871quant-phmath-phmath.MP
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矩阵辐角的Dirac δ函数

Dirac Delta Function of Matrix Argument

Lin Zhang

摘要:

矩阵辐角的狄拉克δ函数在随机矩阵理论、量子信息理论等领域的发展中经常被使用。本文从回顾有关Heaviside单位阶跃函数和狄拉克δ函数的详细知识开始,以教学为目的。然后分别系统地讨论了狄拉克δ函数在向量空间和矩阵空间的推广。给出了这些结果的详细和初步的证明。虽然我们还没有看到这些结果制定的文献中,肯定有前人。还提到了应用。

英文摘要:

Dirac delta function of matrix argument is employed frequently in the development of diverse fields such as Random Matrix Theory, Quantum Information Theory, etc. The purpose of the article is pedagogical, it begins by recalling detailed knowledge about Heaviside unit step function and Dirac delta function. Then its extensions of Dirac delta function to vector spaces and matrix spaces are discussed systematically, respectively. The detailed and elementary proofs of these results are provided. Though we have not seen these results formulated in the literature, there certainly are predecessors. Applications are also mentioned.

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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