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arXiv · quant-ph/9910111

Van Hove's "λ^2 t" limit in nonrelativistic and relativistic field-theoretical models

P. Facchi·S. Pascazio
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Abstract

Van Hove's "λ^2 t" limiting procedure is analyzed in some interesting quantum field theoretical cases, both in nonrelativistic and relativistic models. We look at the deviations from a purely exponential behavior in a decay process and discuss the subtle issues of state preparation and initial time.

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P. Facchi, S. Pascazio. 1999-10-26. Van Hove's "λ^2 t" limit in nonrelativistic and relativistic field-theoretical models. https://doi.org/10.1016/s0960-0779(01)00090-x

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