Concepedia

Phase-integral calculation of quantal matrix elements of exp{−ax} between unbound states in the one-dimensional potential C exp{−ax}

Per Olof Fröman, Anders Hökback, Erik Walles, Staffan Yngve

Annals of Physics · 1985 · 11 citations · 9 references

DOI

Concepts

References

9

Connection formulas for certain higher order phase-integral approximations

Nanny Fröman · Annals of Physics · 1970 · 115 citations

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A direct method for modifying certain phase-integral approximations of arbitrary order

Nanny Fröman, Per Olof Fröman · Annals of Physics · 1974 · 110 citations

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Computation of a class of functions useful in the phase-integral approximation. I. Results

J. A. Campbell · Journal of Computational Physics · 1972 · 89 citations

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On modifications of phase integral approximations of arbitrary order

Nanny Fröman, Per Olof Fröman · ˜Il œNuovo cimento della Società italiana di fisica. B/˜Il œNuovo cimento B · 1974 · 82 citations

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A simple formula for calculating quantal expectation values without the use of wave functions

Nanny Fröman · Physics Letters A · 1974 · 39 citations

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