Light-induced diffusive pulling (pushing) of lithium atoms into a laser beam. Measurement of diffusion coefficients of lithium in 2P and 2S states in noble gases

Atutov, S. N.; Bondarev, B. V.; Kobtzev, S.M.; Kolinko, P.V.; Podjachev, S.P.; Шалагин, А. М.

doi:10.1016/0030-4018(94)00712-4

Cited by 16 publications

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“…The absorption of radiation in atomic collisions of alkalimetal atoms in their ground and excited states with helium atoms is a significant source of opacity in the spectra of L and T dwarf stars and extrasolar planets [1][2][3][4][5][6][7][8][9][10], and the diffusion of excited atoms in gases is responsible for lightinduced drift [11][12][13]. Important in the determination of the absorption and emission profiles near line centers and in the determination of the diffusion coefficients at low temperatures is the scattering at large internuclear distances R [14].…”

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confidence: 99%

Dipole polarizabilities of excited alkali-metal atoms and long-range interactions of ground- and excited-state alkali-metal atoms with helium atoms

et al. 2004

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The scalar and tensor dynamic polarizabilities of the first excited 2 P 1/2,3/2 states of the alkali-metal atoms Na, K, and Rb are calculated using relativistic many-body perturbation theory. Comparison with experimental measurements of the static polarizabilities suggests that the errors in the theoretical predictions do not exceed 1%. The dynamic polarizabilities at imaginary frequencies are employed to calculate the long-range van der Waals coefficients for the interaction of ground-state helium atoms with the excited alkali-metal atoms to a probable error of less than 2%.

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