Abstract
Using the path integral formalism and a model based on statistical arguments, we derive the correlation function which enters the description of a one-dimensional collective system coupled to an intrinsic system in terms of transport concepts. The derivation shows a finite time dependence of the correlation function in contradistinction to a former calculation. We discuss some points related to the derivation and estimate the relaxation times which characterise the memory effects in both cases of weak and strong coupling.
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The authors acknowledge interesting discussions and helpful suggestions from H.A. Weidenmüller and D.M. Brink.
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Sami, T., Richert, J. Time dependence of the transport coefficients in a path integral approach to large amplitude collective motion. Z Physik A 317, 101–105 (1984). https://doi.org/10.1007/BF01420453
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DOI: https://doi.org/10.1007/BF01420453