Frequency operator for anharmonic oscillators by perturbation theory

DOI10.1088/0305-4470/36/18/310zbMath1028.81019OpenAlexW1994170104MaRDI QIDQ4707584

Francisco M. Fernández, Anirban Pathak

Publication date: 10 June 2003

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

Full work available at URL: https://doi.org/10.1088/0305-4470/36/18/310

Mathematics Subject Classification ID

NLS equations (nonlinear Schrödinger equations) (35Q55) Perturbation theories for operators and differential equations in quantum theory (81Q15)

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