{ "id": "2006.09544", "version": "v1", "published": "2020-06-16T22:18:25.000Z", "updated": "2020-06-16T22:18:25.000Z", "title": "Supersymmetry of $\\mathscr{PT}$- symmetric tridiagonal Hamiltonians", "authors": [ "M. W. AlMasri" ], "categories": [ "quant-ph" ], "abstract": "The notion of pseudo-Hermiticity is introduced in the context of supersymmetric tridiagonal Hamiltonians. Our formalism works for Hermitian and non-Hermitian Hamiltonians with real or complex-conjugate pair eigenvalues . We find the relation between matrix elements of the Hamiltonian $H$ and its supersymmetric partner $H^{+}$ in a given basis. Moreover, the orthogonal polynomials in the eigenstate expansion problem attached to $H^{+}$ can be recovered from those polynomials arising from the same problem for $H$ with the help of kernel polynomials. We apply our formalism to the case of shifted $\\mathscr{PT}$-symmetric Morse oscillator.", "revisions": [ { "version": "v1", "updated": "2020-06-16T22:18:25.000Z" } ], "analyses": { "keywords": [ "supersymmetry", "supersymmetric tridiagonal hamiltonians", "complex-conjugate pair eigenvalues", "eigenstate expansion problem", "symmetric morse oscillator" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }