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- W1640571454 abstract "In this work we have presented a rather general and easy-to-apply method for discrete Hilbert space representation of quantum mechanical Green's operators. We have shown that if in some discrete Hilbert space basis representation the Hamiltonian takes an infinite symmetric tridiagonal, i.e. Jacobi-matrix form the corresponding Green's matrix can be calculated on the whole complex energy plane by a continued fraction. The procedure necessitates only the analytic calculation of the Hamiltonian matrix elements, which are used to construct the coefficients of the continued fraction. This continued fraction representation of the Green's operator was shown to be convergent for the bound state energy region. The theory of analytic continuation of continued fractions was utilized to extend the representation to the whole complex energy plane. The presented method provides a simple, easily applicable and analytically correct recipe for calculating discrete basis representation of Green's operators." @default.
- W1640571454 created "2016-06-24" @default.
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- W1640571454 date "2001-01-10" @default.
- W1640571454 modified "2023-09-27" @default.
- W1640571454 title "Continued fraction representation of quantum mechanical Green's operators" @default.
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