Solution of quantum evolution equations by finite-difference

Nai-Hang Kwong, K. J. Schaudt, J. D. Garcia

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We report some recent improvements on the rotation-frame cylindrical-coordinate finite-difference scheme for solving quantum evolution equations in atomic collisions. A Hermitian discretization of the Coriolis term in the rotating Hamiltonian is discussed. Illustrative results from calculations of muon capture by helium atoms are also presented. In other collision calculations involving helium, parametrized Hartree-Slater wavefunctions of helium excited states are used as final projection states. The values of the parameters for states up to 1s4f are tabulated here in the hope that they might be useful in other contexts.

Original languageEnglish (US)
Pages (from-to)171-178
Number of pages8
JournalComputer Physics Communications
Volume63
Issue number1-3
DOIs
StatePublished - 1991

Fingerprint

Helium
helium
atomic collisions
cylindrical coordinates
helium atoms
Hamiltonians
muons
projection
Wave functions
Excited states
collisions
excitation
Atoms

ASJC Scopus subject areas

  • Computer Science Applications
  • Physics and Astronomy(all)

Cite this

Solution of quantum evolution equations by finite-difference. / Kwong, Nai-Hang; Schaudt, K. J.; Garcia, J. D.

In: Computer Physics Communications, Vol. 63, No. 1-3, 1991, p. 171-178.

Research output: Contribution to journalArticle

Kwong, Nai-Hang ; Schaudt, K. J. ; Garcia, J. D. / Solution of quantum evolution equations by finite-difference. In: Computer Physics Communications. 1991 ; Vol. 63, No. 1-3. pp. 171-178.
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