TY - JOUR

T1 - EIT phenomenon for the three-level hydrogen atoms and its application to the era of cosmological recombination

AU - Solovyev, D.

AU - Dubrovich, V.

PY - 2014

Y1 - 2014

N2 - The paper evaluates the contribution of the electromagnetically induced transparency (EIT) phenomenon to the processes of the microwave background (CMB) formation in early universe. We found the additional function $f$ to the integrated line absorption coefficient. This makes it the necessity to upgrade the Sobolev escape probability: $p_{ij}(\tau_S)\rightarrow p_{ij}\left(\tau_S\cdot\left(1+f\right)\right)$. We calculated the magnitude of the function $f$ for different schemes of the hydrogen atom in the three-level approximation in terms of the field parameters. The electric field amplitudes are defined using the CMB distribution. We found that the contribution of $f$ can be significant in some cases.

AB - The paper evaluates the contribution of the electromagnetically induced transparency (EIT) phenomenon to the processes of the microwave background (CMB) formation in early universe. We found the additional function $f$ to the integrated line absorption coefficient. This makes it the necessity to upgrade the Sobolev escape probability: $p_{ij}(\tau_S)\rightarrow p_{ij}\left(\tau_S\cdot\left(1+f\right)\right)$. We calculated the magnitude of the function $f$ for different schemes of the hydrogen atom in the three-level approximation in terms of the field parameters. The electric field amplitudes are defined using the CMB distribution. We found that the contribution of $f$ can be significant in some cases.

KW - multiphoton processes

KW - transition rate

KW - hydrogen atom

KW - quantum optics

KW - astrophysics

KW - atomic physics

KW - recombinational era of universe

U2 - 10.2478/s11534-014-0452-0

DO - 10.2478/s11534-014-0452-0

M3 - Article

VL - 12

SP - 367

EP - 374

JO - Open Physics

JF - Open Physics

SN - 1895-1082

IS - 5

ER -