Non-linear Supersymmetry for non-Hermitian, non-diagonalizable Hamiltonians: I. General properties

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dc.creatorAndrianov, A. A.
dc.creatorCannata, F.
dc.creatorSokolov, A. V.
dc.date2006-10-10
dc.date2007-03-13
dc.date.accessioned2026-07-07T10:26:10Z
dc.date.available2026-07-07T10:26:10Z
dc.descriptionWe study complex potentials and related non-diagonalizable Hamiltonians with special emphasis on formal definitions of associated functions and Jordan cells. The nonlinear SUSY for complex potentials is considered and the theorems characterizing its structure are presented. We present the class of potentials invariant under SUSY transformations for non-diagonalizable Hamiltonians and formulate several results concerning the properties of associated functions . We comment on the applicability of these results for softly non-Hermitian PT-symmetric Hamiltonians. The role of SUSY (Darboux) transformations in increasing/decreasing of Jordancells in SUSY partner Hamiltonians is thoroughly analyzed and summarized in the Index Theorem. The properties of non-diagonalizable Hamiltonians as well as the Index Theorem are illustrated in the solvable examples of non-Hermitian reflectionless Hamiltonians . The rigorous proofs are relegated to the Part II of this paper. At last, some peculiarities in resolution of identity for discrete and continuous spectra with a zero-energy bound state at threshold are discussed.
dc.description31 pp., detailed discussion of PT symmetry and more of relevant refs are added
dc.identifierhttps://arxiv.org/abs/math-ph/0610024
dc.identifierhttp://arxiv.org/abs/math-ph/0610024
dc.identifierNucl.Phys.B773:107-136,2007
dc.identifierdoi:10.1016/j.nuclphysb.2007.03.016
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176789
dc.subjectMathematical Physics
dc.subjectHigh Energy Physics - Theory
dc.subjectSpectral Theory
dc.subjectNuclear Theory
dc.subjectAtomic Physics
dc.subjectQuantum Physics
dc.titleNon-linear Supersymmetry for non-Hermitian, non-diagonalizable Hamiltonians: I. General properties
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