| Autor: |
Chappell, W. R., Cooper, J., Smith, E. W., Dillon, T. |
| Zdroj: |
Journal of Statistical Physics; December 1971, Vol. 3 Issue: 4 p401-410, 10p |
| Abstrakt: |
The methods of kinetic theory are used to describe the radiation from an atom immersed in a gas of perturbing particles. It is shown that the line shape can be expressed in terms of a one-particle distribution function. The appropriate BBGKY hierarchy of equations is derived. This hierarchy is then truncated by assuming that only two-body collisions are important. The resulting equations are solved to obtain a non-Markovian kinetic equation which describes the combined effects of Doppler and pressure broadening. When the Markovian assumption is applied, a generalized linear Boltzmann equation is obtained which describes the line shape in the region where the impact limit is valid and which also describes the phenomenon of collisional narrowing. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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