Exact Solutions of Model Hamiltonian Problems with Effective Interactions
D. C. Zheng, J. P. Vary, B. R. Barrett
Abstract
We demonstrate with soluble models how to employ the effective Hamiltonian approach of Lee and Suzuki to obtain all the exact eigenvalues of the full Hamiltonian. We propose a new iteration scheme to obtain the effective Hamiltonian and demonstrate its convergence properties.
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