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Scattering theory with dissipative interactions and time delay

Теория рассеяния с диссипативными взаимодействиями и время запаздывания

  • Published:
Il Nuovo Cimento B (1971-1996)

Summary

The general formalism of scattering theory with dissipative interactions is presented from the time-dependent viewpoint. A definition of time delay is proposed in this framework, generalizing that given for simple scattering systems. The time delay is expressed by a formula which reduces to that of Eisenbud and Wigner when there is no absorption.

Riassunto

Si presenta, dal punto di vista dipendente dal tempo, il formalismo generale della teoria dello scattering con interazioni dissipative. Si propone in questo contesto una definizione di ritardo temporale, che generalizza quella data per semplici sistemi di scattering. Il ritardo temporale è espresso da una formula che si riduce a quella di Eisenbud e Wigner quando non si ha assorbimento.

Резюме

Предлагается общий формализм для теории рассеяния с диссипативными взаимодействиями. В предложенном формализме вводится определение времени запаздывания. Это определение представляет обобщение определения для простых систем рассеяния. Время запаздывания определяется формулой, которая сводится к формуле Эйзенбуда и Витнера, если отсутствует поглощение.

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Authors and Affiliations

  1. Laboratoire de Physique Théorique, Ecole Polytechnique Fédérale, Lausanne

    Ph. A. Martin

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  1. Ph. A. Martin
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Traduzione a cura della Redazione.

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Martin, P.A. Scattering theory with dissipative interactions and time delay. Nuov Cim B 30, 217–238 (1975). https://doi.org/10.1007/BF02725698

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  • DOI: https://doi.org/10.1007/BF02725698

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