Point Interactions: PT-Hermiticity and Reality of the Spectrum

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dc.creatorAlbeverio, S.
dc.creatorFei, S. M.
dc.creatorKurasov, P.
dc.date2002-06-18
dc.date.accessioned2026-07-07T06:04:25Z
dc.date.available2026-07-07T06:04:25Z
dc.descriptionGeneral 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.
dc.description17 pages
dc.identifierhttps://arxiv.org/abs/quant-ph/0206112
dc.identifierhttp://arxiv.org/abs/quant-ph/0206112
dc.identifierLett. Math. Phys. 59, 2002(227-242)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/90289
dc.subjectQuantum Physics
dc.titlePoint Interactions: PT-Hermiticity and Reality of the Spectrum
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