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On the problem of the bound states in the framework of the Padé approximants

О проблеме связанных состояний в рамках Падэ приближений

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Il Nuovo Cimento A (1965-1970)

Summary

It is suggested that the dependence of the poles of the Padé approximants on the masses of the external virtual particles for an off-mass-shell scattering amplitude may be used in order to improve, by means of a variational principle, the determination of the bound states.

Riassunto

Si suggerisce di usare la dipendenza dalle masse esterne dei poli degli approssimanti di Padé, costruiti per una ampiezza di scattering fuori del «mass shell», per migliorare attraverso un principio variazionale la determinazione degli stati legati.

Резюме

Предполагается, что зависимость полюсов Падэ приближений от масс внешних виртуальных частиц для амплитуды рассеяния вне массовой поверхности может быть использована для улучшения определения связанных состояний посредством вариационного принципа.

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Caneschi, L., Jengo, R. On the problem of the bound states in the framework of the Padé approximants. Nuovo Cimento A (1965-1970) 60, 25–32 (1969). https://doi.org/10.1007/BF02823294

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  • DOI: https://doi.org/10.1007/BF02823294

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