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- W4293566155 abstract "In this paper the two-dimensional Dirac operator with a general hermitian $delta$-shell interaction supported on a straight line is introduced as a self-adjoint operator and its spectral properties are investigated in detail. In particular, it is demonstrated that the singularly continuous spectrum is always empty and that by switching a certain $delta$-shell interaction on, it is possible to generate an eigenvalue in the gap of the spectrum of the free operator or to partially or even fully close the gap. This suggests that the studied operators may serve as interesting continuum toy-models for Dirac materials. Finally, approximations by Dirac operators with regular potentials are presented." @default.
- W4293566155 created "2022-08-30" @default.
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- W4293566155 date "2022-08-26" @default.
- W4293566155 modified "2023-09-24" @default.
- W4293566155 title "Two-dimensional Dirac operators with general $delta$-shell interactions supported on a straight line" @default.
- W4293566155 doi "https://doi.org/10.48550/arxiv.2208.12761" @default.
- W4293566155 hasPublicationYear "2022" @default.
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