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arXiv quant-ph/0206112quant-ph
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点相互作用:PT-厄米性和光谱的实在性

Point Interactions: PT-Hermiticity and Reality of the Spectrum

S. Albeverio, S. M. Fei, P. Kurasov

摘要:

研究了一维二阶导数算子的一般点相互作用。特别是,${\mathcal P \mathcal T}$ -自伴点相互作用的支持在原点和点$\pm l$被认为是。研究了这类非厄米特算子的谱,给出了谱是纯实的条件。与标准的自伴点相互作用的结果进行了比较。

英文摘要:

General point interactions for the second derivative operator in one dimension are studied. In particular, ${\mathcal P \mathcal T}$-self-adjoint point interactions with the support at the origin and at points $\pm l$ are considered. The spectrum of such non-Hermitian operators is investigated and conditions when the spectrum is pure real are presented. The results are compared with those for standard self-adjoint point interactions.

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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