Quantum chaos in multicharged ions and statistical approach to the calculation of electron-ion resonant radiative recombination

Details Quantum chaos in multicharged ions and statistical approach to the calculation of electron-ion resonant radiative recombination Quantum chaos in multicharged ions and statistical approach to the calculation of electron-ion resonant radiative recombination

1998-11-05

arxiv.org/abs/physics/9811010v2

Physics

Atomic Physics

Amended version, 19 pages, including 9 figures, REVTEX, to appear in the Australian Journal of Physics, vol. 52, No. 3 (1999)

Scientific paper

We show that the spectrum and eigenstates of open-shell multicharged atomic ions near the ionization threshold are chaotic, as a result of extremely high level densities of multiply excited electron states ($10^3 eV^{-1}$ in Au^{24+}) and strong configuration mixing. This complexity enables one to use statistical methods to analyse the system. We examine the dependence of the orbital occupation numbers and single-particle energies on the excitation energy of the system, and show that the occupation numbers are described by the Fermi-Dirac distribution, and temperature and chemical potential can be introduced. The Fermi-Dirac temperature is close to the temperature defined through the canonical distribution. Using a statistical approach we estimate the contribution of multielectron resonant states to the radiative capture of low-energy electrons by Au^{25+} and demonstrate that this mechanism fully accounts for the 10^2 times enhancement of the recombination over the direct radiative recombination, in agreement with recent experimental observations.

Affiliated with

Also associated with

No associations

Rating

Quantum chaos in multicharged ions and statistical approach to the calculation of electron-ion resonant radiative recombination does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantum chaos in multicharged ions and statistical approach to the calculation of electron-ion resonant radiative recombination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum chaos in multicharged ions and statistical approach to the calculation of electron-ion resonant radiative recombination will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-576375