1992 · Nanny Fröman, Per Olof Fröman, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 76

Phase-Integral Method

1996 · Nanny Fröman, Per Olof Fröman · Springer Tracts in Natural Philosophy · 54

Phase-integral formulas for level densities, normalization factors, and quantal expectation values, not involving wave functions

1978 · Nanny Fröman · Physical Review A · 44

Tunneling and super-barrier transmission through a system of two real potential barriers

1970 · Nanny Fröman, Örjan Dammert · Nuclear Physics A · 43

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

1974 · N. Fröman · Physics Letters A · 38

Phase-integral calculation of quantal matrix elements without the use of wavefunctions

1977 · Nanny Fröman, Per Olof Fröman · Journal of Mathematical Physics · 36

Phase-integral method : allowing nearlying transition points

1996 · Nanny Fröman, Per Olof Fröman · 31

The Stokes constants for a cluster of transition points

1988 · Nanny Fröman, Per Olof Fröman, et al. · Mathematical Proceedings of the Cambridge Philosophical Society · 27

Generalization of the Fermi-Segrè formula

1981 · N. Fröman, P.O. Fröman · Journal de physique · 27

The Jost function treated by the F-matrix phase integral method

1979 · G Drukarev, N Froman, et al. · Journal of Physics A Mathematical and General · 25

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Fermi-Segrè Formula

1972 · Nanny Fröman, Per Olof Fröman · Physical Review A · 24

Comments on ’’Higher order modified potentials for the effective phase integral approximation’’

1981 · Nanny Fröman, Per Olof Fröman · Journal of Mathematical Physics · 23

Dispersion relation for energy bands and energy gaps derived by the use of a phase-integral method, with an application to the Mathieu equation

1979 · N Froman · Journal of Physics A Mathematical and General · 23

On Wentzel’s proof of the quantization condition for a single-well potential

1977 · Nanny Fröman, Per Olof Fröman · Journal of Mathematical Physics · 23

Exact formulas and phase-integral formulas, not involving wavefunctions, for expectation values pertaining to general potentials

1985 · Nanny Fröman, Per Olof Fröman · Annals of Physics · 20

Phase-integral calculation of quantal matrix elements between unbound states, without the use of wavefunctions

1979 · Nanny Fröman, Per Olof Fröman, et al. · Molecular Physics · 20

New two-turning-point phase-integral formula for the residue of theSmatrix at a Regge pole

1991 · Nanny Fröman, Per Olof Fröman · Physical Review A · 19

Works count: 70

Citation count: 1,720

H-index: 22

I10-index: 42