Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Laser cooling limits in fields with a polarisation gradient of atoms with different recoil energies. / Kirpichnikova, A. A.; Prudnikov, O. N.; Il'Enkov, R. Ya и др.
в: Quantum Electronics, Том 50, № 10, 31.10.2020, стр. 939-946.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Laser cooling limits in fields with a polarisation gradient of atoms with different recoil energies
AU - Kirpichnikova, A. A.
AU - Prudnikov, O. N.
AU - Il'Enkov, R. Ya
AU - Taichenachev, A. V.
AU - Yudin, V. I.
PY - 2020/10/31
Y1 - 2020/10/31
N2 - Based on the numerical solution of the quantum kinetic equation for the atomic density matrix, which makes it possible to accurately take into account the recoil effects in the interaction of atoms with field photons, we have studied the limits of laser cooling of atoms using closed optical transitions characterised by different recoil parameters (the ratio of the recoil energy to the natural linewidth). It is shown that for optical transitions with an insufficiently small recoil parameter, the polarisation effects, which lead to the possibility of sub-Doppler laser cooling, lose their efficiency and do not ensure an attainment of the temperature below the Doppler limit. The analysis performed allows one to outline the boundaries of the sub-Doppler theory of laser cooling of atoms.
AB - Based on the numerical solution of the quantum kinetic equation for the atomic density matrix, which makes it possible to accurately take into account the recoil effects in the interaction of atoms with field photons, we have studied the limits of laser cooling of atoms using closed optical transitions characterised by different recoil parameters (the ratio of the recoil energy to the natural linewidth). It is shown that for optical transitions with an insufficiently small recoil parameter, the polarisation effects, which lead to the possibility of sub-Doppler laser cooling, lose their efficiency and do not ensure an attainment of the temperature below the Doppler limit. The analysis performed allows one to outline the boundaries of the sub-Doppler theory of laser cooling of atoms.
KW - Density matrix
KW - Field polarisation
KW - Laser cooling of atoms
KW - Optical transitions
KW - Recoil parameter
UR - http://www.scopus.com/inward/record.url?scp=85092437821&partnerID=8YFLogxK
U2 - 10.1070/QEL17408
DO - 10.1070/QEL17408
M3 - Article
AN - SCOPUS:85092437821
VL - 50
SP - 939
EP - 946
JO - Quantum Electronics
JF - Quantum Electronics
SN - 1063-7818
IS - 10
ER -
ID: 25614656