A new general approximation scheme(NGAS) in quantum theory:application to the anharmonic- and double well oscillators

  title={A new general approximation scheme(NGAS) in quantum theory:application to the anharmonic- and double well oscillators},
  author={B. P. Mahapatra and Neil Andre Santi and N. B. Pradhan},
  journal={arXiv: Quantum Physics},
A new scheme of approximation in quantum theory is proposed which is potentially applicable to arbtrary interacting systems. The method consists in in approximating the original Hamiltonian by one corresponding to a suitable exactly solvable system (with interaction) such that the "quantum average" of both are equal, thus forcing self-consistency.The method transcends the limitations of the variational method and the perturbation theory.The results are systematically improvable by the… 
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