TY - JOUR

T1 - Influence of BBR-Induced Level Mixing Effect on Cosmological Recombination of Hydrogen and Singly Ionized Helium Atoms

AU - Zalialiutdinov, T. A.

AU - Solovyev, D. A.

AU - Labzowsky, L. N.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - An effect of atomic line broadening induced by the blackbody radiation (BBR) is investigated. Two physically different processes that affect the line broadening are compared within the framework of quantum electrodynamics (QED): the stimulated Raman scattering and BBR-induced level mixing. It is shown that the mixing effect gives the most significant contribution to the line broadening. According to our analysis, it is possible to distinguish both effects in the laboratory experiments. The impact of BBR-induced level mixing on the recombination history of primordial hydrogen and singly ionized helium atoms is discussed.

AB - An effect of atomic line broadening induced by the blackbody radiation (BBR) is investigated. Two physically different processes that affect the line broadening are compared within the framework of quantum electrodynamics (QED): the stimulated Raman scattering and BBR-induced level mixing. It is shown that the mixing effect gives the most significant contribution to the line broadening. According to our analysis, it is possible to distinguish both effects in the laboratory experiments. The impact of BBR-induced level mixing on the recombination history of primordial hydrogen and singly ionized helium atoms is discussed.

UR - http://www.scopus.com/inward/record.url?scp=85042933908&partnerID=8YFLogxK

U2 - 10.1134/S1063776118010119

DO - 10.1134/S1063776118010119

M3 - Article

AN - SCOPUS:85042933908

VL - 126

SP - 8

EP - 20

JO - Journal of Experimental and Theoretical Physics

JF - Journal of Experimental and Theoretical Physics

SN - 1063-7761

IS - 1

ER -