A variational approach to perturbative calculations
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Publication:4655381
DOI10.1088/0143-0807/26/1/008zbMath1061.81522OpenAlexW1972133198MaRDI QIDQ4655381
Publication date: 11 March 2005
Published in: European Journal of Physics (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1088/0143-0807/26/1/008
Perturbation theories for operators and differential equations in quantum theory (81Q15) Variational principles of physics (49S05)
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