Convergence of Scaled Delta Expansion: A
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R. Guida; K. Konishi; H. Suzuki
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Article
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1995
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Elsevier Science
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English
β 991 KB
We prove that the linear delta expansion for energy eigenvalues of the quantum mechanical anharmonic oscillator converges to the exact answer if the order dependent trial frequency \(\Omega\) is chosen to scale with the order as \(\Omega=C N^{\gamma} ; 1 / 3<\gamma<1 / 2, C>0\) as \(N \rightarrow \i