CRCU

Chemical Research in Chinese Universities ›› 1989, Vol. 5 ›› Issue (4): 336-343.

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The Effective Hamiltonian and Electron Correlation Energy

Deng Conghao1, Feng Dacheng1, Deng Lu2, Li Dazhong3   

  1. 1. Theoretical Chemistry Division, Shandong University, Ji'nan;
    2. Department of Physics, Baylor University, Waco, Texas, U. S. A. ;
    3. Department of Physics, University of British Columbia, Canada
  • Received:1989-04-07 Online:1989-12-24 Published:2011-09-09
  • Supported by:

    Supported by the National Natural Science Foundation of China

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Abstract: An effective,hermitian hamiltonian is derived in amodel space.Its perturbation expressions to third order approximation are given.The correlation energy is also given to the third order approximation.The effective hamiltonian deviates form the actual one by the presence of acorrelation operator.The cprrelation operatop is given in an explicit form.

Key words: fective hamiltonian, Model space, Transition operatop expansion operator, Correlation energy