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- W1966679997 abstract "The wave packet propagation in the basis of interpolating scaling functions (ISF) is studied. The ISF are well known in the multiresolution analysis based on spline biorthogonal wavelets. The ISF form a cardinal basis set corresponding to an equidistantly spaced grid. They have compact support of the size determined by the order of the underlying interpolating polynomial. In this basis the potential energy matrix is diagonal. The kinetic energy matrix is sparse, and in the 1D case, has a band-diagonal structure. An important future of the basis is that matrix elements of a Hamiltonian are exactly computed by means of simple algebraic transformations efficiently implemented numerically. Therefore, the number of grid points and the order of the underlying interpolating polynomial can easily be varied allowing one to approach the accuracy of pseudospectral methods in a regular manner, similar to the high order finite difference methods. The results for the calculation of the H+H2 collinear collision shows that the ISF provide one with an accurate and efficient representation for use in wave packet propagation method." @default.
- W1966679997 created "2016-06-24" @default.
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- W1966679997 date "2004-06-01" @default.
- W1966679997 modified "2023-10-10" @default.
- W1966679997 title "An application of the interpolating scaling functions to wave packet propagation" @default.
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- W1966679997 doi "https://doi.org/10.1016/j.cpc.2004.03.003" @default.
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