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A new iteration method for bound states

Новый итерационный метод для свяэанных состояний

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Il Nuovo Cimento B (1965-1970)

Summary

An iteration method for bound states is presented, starting from an arbitrary function and yielding at the n-th step the same function acted upon by a Chebyshev polynomial of the n-th degree in the Hamiltonian. This method does not require any integration and is of fast convergence. Results are given concerning its application to a three-body problem.

Riassunto

Si presenta un metodo iterativo per la ricerca di stati legati, che partendo da una funzione arbitraria fornisce all’n-mo passo il risultato dell’applicazione a tale funzione di un polinomio di Chebyshev di grado n nell’hamiltoniana. Il metodo non richiede integrazioni e converge rapidamente. Si danno i risultati dell’applicazione a un problema di tre corpi.

Реэюме

Предлагается итерационный метод для свяэанных состояний, который исходит иэ проиэвольной функции и приводит на n-щаге к той же функции, которая действует на полином Чебыщева n-степени в гамильтониане. Этот метод не требует интегрирования и быстро сходится. Приводятся реэультаты, относяшиеся к применению зтого метода к проблеме трех тел.

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References

  1. See for instance: Handbook of Mathematical Functions, edited by M. Abramowitz and I. A. Stegun (Washington, 1965).

  2. Y. C. Tang and R. C. Herndon: Nucl. Phys., A 93, 662 (1967).

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Fabri, E., Fiorio, G. A new iteration method for bound states. Nuovo Cimento B (1965-1970) 60, 210–216 (1969). https://doi.org/10.1007/BF02712364

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  • DOI: https://doi.org/10.1007/BF02712364

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