Abstract
The scattering length formula was formulated and proved in special cases by Kac in 1974 and 1975. It was discussed by a series of authors, including Taylor 1976, Tamura 1992 and Takahashi 1990. The formula was proved by Takeda 2010 in symmetric case and by He 2011 assuming weak duality. In this article, we shall use the powerful tool of Kutznetsov measures to prove this formula in the general framework of right Markov processes without further assumptions.
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Fitzsimmons, P.J., He, P. & Ying, J. A remark on Kac’s scattering length formula. Sci. China Math. 56, 331–338 (2013). https://doi.org/10.1007/s11425-012-4546-0
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DOI: https://doi.org/10.1007/s11425-012-4546-0