Algebraic convergent perturbation theory for quantum systems with strong anharmonicity

DOI10.1088/0305-4470/20/15/029zbMath0643.58044OpenAlexW2091432392MaRDI QIDQ3785664

A. G. Ushveridze

Publication date: 1987

Published in: Journal of Physics A: Mathematical and General (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1088/0305-4470/20/15/029

zbMATH Keywords

perturbative expansionvariational analysisapproximate solution of the Schrödinger equationdecomposition of the Hamiltonianweak- and strong-coupling regimes

Mathematics Subject Classification ID

Applications of global analysis to the sciences (58Z05) Perturbation theories for operators and differential equations in quantum theory (81Q15) Dynamical aspects of finite-dimensional Hamiltonian and Lagrangian systems (37J99)

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