Calculations of electronically excited quasimolecules with the use of the scattering characteristics of a weakly bound electron

Ivanov, G. K.

doi:10.1007/bf01004350

Cited by 3 publications

(9 citation statements)

References 7 publications

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“…-Out of the numerous model potential and pseudopotential methods, proposed for interatomic interaction calculation of A*+ Y(1S0) (see f.e. [16]), a version of the pseudopotential method is offered and developed in [28], [59][60][61][62][63][64], [207]. It is relatively simple and in the same time reliable enough (in the case when the perturbator atom Y is He or Ne).…”

Section: The Pseudopotential Methods For Interatomic Interactionmentioning

confidence: 99%

“…Unlike the model potential methods the pseudopotential method under discussion does not require the determination of the electron-atom interaction at small distances and few parameters, taken from the electron-atom scattering experiment, are included directly in the final results, namely the matrix elements of the interaction presented in a self-consistent analytical form. The main points and results of the pseudopotential method are discussed bellow [28], [59][60][61][62][63][64], [207].…”

Section: The Pseudopotential Methods For Interatomic Interactionmentioning

confidence: 99%

“…(in atomic units system : Lscattering length of the electron on a Y(1S0) atom ; 03B2dipole polarizability of y(lS0) atom ; e* 0coupling energy of the excited electron in A* atom ; v = (2|03B5* 11/2), the interatomic interaction operator A*Y (1.14) is presented as [16,60] :…”

Section: Under Conditionsmentioning

confidence: 99%

“…The quantities Uscrnl,n'l' characterize the screening of the polarization interaction of the A+ core and Y atom by the excited electron field. The quantities Uscrnl03BB,n'l'03BB are expressed by integral degree functions [59][60][61][62][63][64] when some analytical approximations of the 03A6nl functions are used. In the case when the 03A6nl functions are of an arbitrary type, the quantities Unl,n'l' are expressed in the form of single integrals of the radial wave function products f * ( p) f(n'l' (03C1) [28,207,222] ; in particular, at 1, l' 1 they are :…”

Section: Under Conditionsmentioning

confidence: 99%

“…Valle et al [252,253] utilize the electronatom scattering data to calculate the exchanged part of interaction potential of noble gas excited atom with other type noble gas ground state atom. The expression of exchange interaction [252] differs from the more correct (1.41), (1.42) expressions [59][60][61][62][63][64]. That is why, the method suggested in [252] can not be employed for X* + Y interaction potential calculations, especially in the cases when the Y atoms have a large polarizability (Y = Ar, Kr, Xe).…”

Section: Under Conditionsmentioning

confidence: 99%

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Interactions of noble gas atoms. Processes due to elastic scattering

1989

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Section: The Pseudopotential Methods For Interatomic Interactionmentioning

confidence: 99%

Section: The Pseudopotential Methods For Interatomic Interactionmentioning

confidence: 99%

Section: Under Conditionsmentioning

confidence: 99%

Section: Under Conditionsmentioning

confidence: 99%

Section: Under Conditionsmentioning

confidence: 99%

See 3 more Smart Citations

Interactions of noble gas atoms. Processes due to elastic scattering

1989

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Optical transitions in excited alkali + rare-gas collision molecules and related interatomic potentials:

Behmenburg

Makonnen

Kaiser

et al. 1996

J. Phys. B: At. Mol. Opt. Phys.

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A comparison is made of experimental far-wing profiles for the system Li(2P → 3D)He with quantum calculations of thermally averaged free-free continua. Using input adiabatic potentials and transition moment functions from both ab initio and semi-empirical approaches, the comparison shows: (i) new ab initio potentials for Li * (2P, 3P, 3D)He reproduce the spectral positions of the observed rainbow satellites well; the height of the 3D barrier predicted agrees with experiment to within ±15 cm −1 , whereas its position is too large by 0.3 a 0 ; (ii) potentials obtained with various semi-empirical methods reproduce the satellite structure qualitatively, but are generally too repulsive in the 3D state at intermediate and large internuclear separations; (iii) transition moment functions for the asymptotically forbidden 2P → 3P transitions reproduce, with different degrees of accuracy, the intensity of the red-wing satellite related to the 3P potential extremum around 12 a 0 . The vibrational energies in the 2P and 3D states calculated with the ab initio potentials reproduce to within a few cm −1 those obtained from rotationally resolved band spectra reported in the literature.

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