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Vacuum for external-field problems

Вакуум для проблем вн ешнего поля

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Il Nuovo Cimento B (1971-1996)

Summary

We study quantum fields in interaction with external potentials and show that it is possible to define quanta of the interpolating field thus permitting an unambiguous definition of the time-dependent vacuum and diagonalization of the Hamiltonian. Furthermore, it is possible to identify the quanta of the interpolating field as « in-particles ».

Riassunto

Si studiano i campi quantici in interazione con potenziali esterni e si mostra che è possibile definire i quanti del campo interpolatore permettendo così una definizione non ambigua del vuoto dipendente dal tempo e della diagonalizzazione dell’hamiltoniano. Inoltre è possibile identificare i quanti del campo interpolatore come « particelle in ».

Резюме

Мы исследуем квантов ые поля при взаимодействии c внеш ними потенциалами и показ ываем, что можно опред елить кванты интерполяцио нного поля. Таким образом, до пускается однозначн ое определение зависящ его от времени вакуума и диагонализ ация Гамильтониана. К роме того, можно идентифициров ать эти кванты интерп оляционного поля, как « внутpeнние частицы ». поля, как « внутpeнние ча стицы ». (*) Переведено редакцие й.

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References

  1. A. S. Wightman: inProceedings of the Fifth Coral Gables Conference (San Francisco, 1968) ;Troubles in the external-field problem for invariant wave equations, in1971 Coral Gables Conference (London, 1971). See alsoB. Schroer, R. Seiler andA. Swieca:Phys. Rev. D,2, 2927 (1970);B. Schroer andA. Swieca:Phys. Rev. D,2, 2938 (1970);P. Minkowski andR Seiler:Phys. Rev. (in print).

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Work supported in part by the National Research Council of Canada.

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Labonté, G., Capei, A.Z. Vacuum for external-field problems. Nuovo Cim B 10, 583–591 (1972). https://doi.org/10.1007/BF02895534

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  • DOI: https://doi.org/10.1007/BF02895534

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