Nonuniqueness in the close-coupling method for e-He scattering
نویسندگان
چکیده
منابع مشابه
Total ionization cross section for electron-hydrogen scattering using a time-dependent close-coupling method.
A time-dependent close-coupling method is combined with a time-independent distorted-wave method to calculate the electron ionization cross section for hydrogen. A second-order differencing of the time propagator for the close-coupled equations is found to be very efficient. Low partial-wave close-coupling results are added to high partial-wave distorted-wave results to yield total ionization c...
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Differential and total cross sections for elastic and excitation from the ground state to n ≤ 2 states of atomic helium by electrons are computed for incident energies in the range from 5 to 50 eV. The states excitation cross sections are calculated with the use of close-coupling expansion with a non-orthogonal Laguerre-L basis function. Our method is a frozen-core model of the target in which ...
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15 صفحه اولNonuniqueness in inverse acoustic scattering on the line
The generalized one-dimensional Schriidinger equation d2#/dx2 + k2H( x) ‘4 =P(x)# is considered. The nonuniqueness is studied in the recovery of the function P(x) when the scattering matrix, H(x), and the bound state energies and norming constants are known. It is shown that when the reflection coefficient is unity at zero energy, there is a one-parameter family of functions P(x) corresponding ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 1997
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.55.1028