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

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quant-ph2019

Towards Nonperturbative Solution of Quantum Dynamics : A Hamiltonian Mean Field Approximation Scheme with Perturbation Theory for Arbitray Strength of Interaction

B. P. Mahapatra

We introduce a non perturbative general approximation scheme (NGAS) that can handle interactions of any strength in quantum theory. This approach starts with an input Hamiltonian t…