TY - JOUR

T1 - 4s-1s two-photon decay in hydrogen atom with allowance for cascades

AU - Zalyalyutdinov, T. A.

AU - Solovyev, D. A.

AU - Labzovskii, L. N.

PY - 2011

Y1 - 2011

N2 - The 4s-1s two-quantum decay in the hydrogen atom is calculated in the framework of quantum electrodynamics with allowance for cascades. It is shown that the pure two-photon contribution cannot be separated from the contribution of cascade processes. Interference between the transitions of these two types is comparable in magnitude with the oure two-photon contribution. The separation of pure two-photon contributions is discussed recently in connection with the role of two-photon decays in the separation of radiation from amtter in the early Universe.

AB - The 4s-1s two-quantum decay in the hydrogen atom is calculated in the framework of quantum electrodynamics with allowance for cascades. It is shown that the pure two-photon contribution cannot be separated from the contribution of cascade processes. Interference between the transitions of these two types is comparable in magnitude with the oure two-photon contribution. The separation of pure two-photon contributions is discussed recently in connection with the role of two-photon decays in the separation of radiation from amtter in the early Universe.

KW - hydrogen atom

KW - two-photon decay

KW - cascades

KW - separation of radiation from matter

U2 - 10.1134/S0030400X11030283

DO - 10.1134/S0030400X11030283

M3 - Article

VL - 110

SP - 328

EP - 334

JO - OPTICS AND SPECTROSCOPY

JF - OPTICS AND SPECTROSCOPY

SN - 0030-400X

IS - 3

ER -