Eigenfunctions of continuous spectrum in the problem of the two zero range potentials

Authors

DOI:

https://doi.org/10.33910/2687-153X-2021-2-2-87-92

Keywords:

zero range potentials, photodetachment, scattering, wafe function, S-matrix, diatomic molecules

Abstract

The paper deals with the application of the method of eigenfunctions of the S-matrix to the problem of two zero range potentials and continues our study of photodetachment, begun in a previous paper (Devdariani, Dadonova 2018). In the case under consideration the eigenfunctions of specific parity depend on two phases that lead to the explicit expressions for the characteristics of scattering and make it possible to construct the proper sets of wave functions for the problems of scattering and photodetachment. An interesting feature of the problem is that the two phases can coincide, which leads to a resonance in the transmission coefficient.

References

Dadonova, A. V., Devdariani, A. Z. (2012) H− – H Collision induced radiative transitions. Journal of Physics: Conference Series, 397, article 012040. https://doi.org/10.1088/1742-6596/397/1/012040 (In English)

Dadonova, A. V., Devdariani, A. Z. (2016) Radiative transitions in quasimolecules: H+ H– collisions. Journal of Physics: Conference Series, 769, article 012043. https://doi.org/10.1088/1742-6596/769/1/012043 (In English)

Dadonova, A., Devdariani, A., Dalimier, E., Angelo, P. (2017) Bound-free transitions in H + H– collisions. Journal of Physics: Conference Series, 810, article 012027. https://doi.org/10.1088/1742-6596/810/1/012027 (In English)

Devdariani, A. Z., Dadonova, A. V. (2015) Radiative transitions under H + H– collisions. Russian Journal of Physical Chemistry B, 9 (4), 591–592. https://doi.org/10.1134/S1990793115040181 (In English)

Devdariani, A., Dadonova, A. (2018) Svyazanno-svobodnye perekhody pri stolknoveniyakh H+H– v odnomernom sluchae [Bound-free electron transitions for one-dimensional H+H– collisions]. Universitetskij nauchnyj zhurnal — Humanities & Science University Journal, 37, 49–54. (In English)

Devdariani, A., Dadonova, A., Shevtsova, J. (2014) Radiative transitions under resonance charge exchange. H + H− collisions. Journal of Physics: Conference Series, 548, article 012018. https://doi.org/10.1088/1742-6596/548/1/012018 (In English)

Demkov, Yu. N., Ostrovskii, V. N. (1988) Zero-range potentials and their applications in atomic physics. Boston: Springer Publ., 296 p. https://doi.org/10.1007/978-1-4684-5451-2 (In English)

Demkov, Yu. N., Rudakov, V. S. (1971) The method of partial waves for a nonspherical scatter. Soviet Physics JETP, 32 (6), 1103–1109. (In English)

Landau, L. D., Lifshitz, E. M. (1974) Teoreticheskaya fizika. T. 3. Kvantovaya mekhanika. Nerelyativistskaya teoriya [Theoretical physics. Vol. 3. Quantum mechanics. Non-relativistic theory]. Moscow: Nauka Publ., 768 p. (In Russian)

Lapidus, R. (1970) One-dimensional model of a diatomic ion. American Journal of Physics, 38 (7), 905–908. https://doi.org/10.1119/1.1976491 (In English)

Published

17.06.2021

Issue

Section

Theoretical Physics