Dynamics of Radiative Transitions Between Stark Sublevels for Non-Hydrogenic Atoms and Diatomics in Dc Electric Field

Abstract

The quantum approach for definition of the radiation transitions between Stark sublevels for non-hydrogenic atoms and diatomics in an external electric field is underlined and based on the operator perturbation theory and model potential method. The cited radiative phenomena can be basis for construction of new types of the quantum sensor devices.

Penning and Stochastic Collisional Ionization of Atoms in an External Magnetic Field: Model Potential Scheme

“…Let us remind the main moments of the elementary model for collisional process, in particular (1). A definition of complete cross section for the collisional process can be written as [24]: (4) where G( R ) is a probability of the Auger effect G( R)= 2p|V 12 | 2 g 2 (indexes 1and 2 are relating to states: A*+B and A+B + +e; g is a density of the final states; V is operator of interaction between atoms).…”

“…The important step is to account for a possibility of decay in the second and higher orders of perturbation theory on V( R). Such approach may be used as for the Penning ionization description as for ionization through the wan-der-Waalse capture [3,5,17,24].…”

“…If we suppose that atom А* is in the state with the whole moment J i and projection on the quantization axe М i ; in the final state the corresponding quantum numbers are J f М f ; The final expression for the full probability of the electron ejection is similar to expressions in different approximation is, for example, presented in ref. [17][18][19][20][21][22][23][24].…”

“…Let us remind the main moments of the elementary model for collisional process, in particular (1). A definition of complete cross section for the collisional process can be written as [24]:…”

“…where l Q  moment of spherical f А* is in th and projec the final numbers a the full pro similar approxima ref. [17][18][19][20][21][22][23][24] systems remains a subject of intensive theoretical and experimental interest, however, at present time an available level of modelling these processes is still not satisfactory. The most important tasks include more accurate modelling of an external electromagnetic field on the corresponding Penning and stochastic collisional ionization processes.…”