Peculiarities of transport phenomena in highly excited gases

Malnev, V. N.; Naryshkin, R.

doi:10.1016/j.molliq.2004.07.039

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2008

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“…The thermodynamic functions of resonantly excited gases were first considered in [5]. Quasimolecules of two differently excited one-electron atoms in such gases were discussed in [6], and a role of quasimolecules in resonantly excited gases was considered in [7].…”

Section: Introductionmentioning

confidence: 99%

Metastable Quasimolecules in Excited Gases

Malnev,

Naryshkin

2008

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Quasimolecules, which consist of two differently excited atoms in a resonantly excited gas, are considered. The energy of dissociation and typical sizes of such molecules are calculated in the first order of quantum-mechanical perturbation theory with the help of the dipole-dipole interaction operator. It is shown that there exist metastable quasimolecules, whose dipole radiative transition to the ground state (two non-excited atoms) is forbidden. The lifetime of such molecules is estimated and it is shown that quasimolecules may considerably affect the transport processes in a resonantly excited gas.

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Section: Introductionmentioning

confidence: 99%