Open AccessОптимальная пара ридберговских атомов щелочных металлов в несимметричных пеннинговских процессах ионизации
Author(s) -
Алаа Мазалам,
К. Мичулис,
И.И. Бетеров,
Н.Н. Безуглов,
А.Н. Ключарев,
А. Экерс
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2019.09.48186.45-19
Subject(s) - rydberg formula , atomic physics , rydberg atom , rydberg matter , autoionization , dipole , principal quantum number , chemistry , ionization , alkali metal , hydrogen atom , atom (system on chip) , hydrogen spectral series , electron , physics , ion , quantum , photoionization , quantum mechanics , group (periodic table) , computer science , embedded system , quantum dissipation , organic chemistry
Penning ionization (PI) processes for cold Rydberg alkali metal atoms are investigated. Contrary to the reference case of a hydrogen atom, the corresponding autoionization widths demonstrate a sharp dependence (by orders of magnitude) on the orbital quantum numbers of the atoms exposed to long-range dipole-dipole interaction. An important feature of PI is the nontrivial dependence of its efficiency on the size of Rydberg particles. For all types of alkali atoms, the existence of optimal Rydberg pairs has been demonstrated (highly asymmetric configurations of Rydberg pairs), which lead to an explosive intensification (by several orders of magnitude) of the formation of free electrons due to PI processes. This property makes PI an important source of the formation of primary charged particles during the formation of cold Rydberg plasma. The presented numerical data for potassium atomic pairs demonstrate a significant effect of the Förster resonance on the values of PI rate constants.