Diffusion Ionization of the Rydberg Diatomic Quasi-Molecular Complex Formed upon Collisions of Rubidium Atoms

N. N. Bezuglov, V. M. Borodin, V. Grushevskiǐ, A. N. Klyucharev, K. Michulis, F. Fuzo, M. Allegrini

Результат исследований: Научные публикации в периодических изданияхстатья

7 Цитирования (Scopus)

Выдержка

The problem of impact ionization of two Rb atoms, one of which belongs to the Rydberg P series and the other of which is in the ground state, is studied and solved with the use of the methods of stochastic dynamics for description of the path instability of a Rydberg electron in a collision diatomic complex. The actual potential of the atomic framework was taken into account in terms of the single-channel quantum-defect method, whose accuracy was demonstrated on the example of determination of the photoionization cross sections in the quasi-classical approximation. A representation of the effective average lifetime of an external electron in the bound state that takes into account both the diffusion migration within the Coulomb crowding of the potential energy curves for the quasi-molecular complex and the direct quantum autoionization is obtained in analytical form. It is shown that the rate constants of diffusion collisional ionization calculated by us are in good agreement with the experimental data.

Язык оригиналаанглийский
Страницы (с-по)515-524
Число страниц10
ЖурналOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Том95
Номер выпуска4
DOI
СостояниеОпубликовано - 1 окт 2003

Отпечаток

Rubidium
rubidium
Ionization
ionization
Atoms
Photoionization
Impact ionization
crowding
collisions
Electrons
autoionization
Potential energy
Ground state
atoms
photoionization
Rate constants
electrons
potential energy
life (durability)
Defects

Предметные области Scopus

  • Спектроскопия
  • Атомная и молекулярная физика и оптика

Цитировать

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abstract = "The problem of impact ionization of two Rb atoms, one of which belongs to the Rydberg P series and the other of which is in the ground state, is studied and solved with the use of the methods of stochastic dynamics for description of the path instability of a Rydberg electron in a collision diatomic complex. The actual potential of the atomic framework was taken into account in terms of the single-channel quantum-defect method, whose accuracy was demonstrated on the example of determination of the photoionization cross sections in the quasi-classical approximation. A representation of the effective average lifetime of an external electron in the bound state that takes into account both the diffusion migration within the Coulomb crowding of the potential energy curves for the quasi-molecular complex and the direct quantum autoionization is obtained in analytical form. It is shown that the rate constants of diffusion collisional ionization calculated by us are in good agreement with the experimental data.",
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Diffusion Ionization of the Rydberg Diatomic Quasi-Molecular Complex Formed upon Collisions of Rubidium Atoms. / Bezuglov, N. N.; Borodin, V. M.; Grushevskiǐ, V.; Klyucharev, A. N.; Michulis, K.; Fuzo, F.; Allegrini, M.

В: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Том 95, № 4, 01.10.2003, стр. 515-524.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Diffusion Ionization of the Rydberg Diatomic Quasi-Molecular Complex Formed upon Collisions of Rubidium Atoms

AU - Bezuglov, N. N.

AU - Borodin, V. M.

AU - Grushevskiǐ, V.

AU - Klyucharev, A. N.

AU - Michulis, K.

AU - Fuzo, F.

AU - Allegrini, M.

PY - 2003/10/1

Y1 - 2003/10/1

N2 - The problem of impact ionization of two Rb atoms, one of which belongs to the Rydberg P series and the other of which is in the ground state, is studied and solved with the use of the methods of stochastic dynamics for description of the path instability of a Rydberg electron in a collision diatomic complex. The actual potential of the atomic framework was taken into account in terms of the single-channel quantum-defect method, whose accuracy was demonstrated on the example of determination of the photoionization cross sections in the quasi-classical approximation. A representation of the effective average lifetime of an external electron in the bound state that takes into account both the diffusion migration within the Coulomb crowding of the potential energy curves for the quasi-molecular complex and the direct quantum autoionization is obtained in analytical form. It is shown that the rate constants of diffusion collisional ionization calculated by us are in good agreement with the experimental data.

AB - The problem of impact ionization of two Rb atoms, one of which belongs to the Rydberg P series and the other of which is in the ground state, is studied and solved with the use of the methods of stochastic dynamics for description of the path instability of a Rydberg electron in a collision diatomic complex. The actual potential of the atomic framework was taken into account in terms of the single-channel quantum-defect method, whose accuracy was demonstrated on the example of determination of the photoionization cross sections in the quasi-classical approximation. A representation of the effective average lifetime of an external electron in the bound state that takes into account both the diffusion migration within the Coulomb crowding of the potential energy curves for the quasi-molecular complex and the direct quantum autoionization is obtained in analytical form. It is shown that the rate constants of diffusion collisional ionization calculated by us are in good agreement with the experimental data.

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