Journal
COMPUTER PHYSICS COMMUNICATIONS
Volume 182, Issue 1, Pages 130-133Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cpc.2010.06.014
Keywords
Exponential cosine Coulomb potential; One-electron system; Variational method
Funding
- National Science Council of Taiwan, ROC
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Solutions of Schrodinger s equation are presented for two-particle system interacting through generalized exponential cosine screened Coulomb potential Solutions are computed for several values of screening parameters In the present context Ritz variation method is used with hydrogenic wave function as a trial wave function The bound energies are derived from an energy equation which contains one unknown variational parameter To calculate the variational parameter numerically fixed-point iteration scheme is used The calculated energy eigenvalues for exponential cosine screened Coulomb potential agree excellently with the available other theoretical results Under screening all energy levels are shifted away from their unscreened values toward the continuum The radial wave functions radial probability distribution functions are presented for different screening parameters (C) 2010 Elsevier BV All rights reserved
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