Intrinsic viscosity from the Green-Kubo formula

A. Jagannathan, Y. Oono, B. Schaub

Research output: Contribution to journalArticlepeer-review


The Green-Kubo formalism and the conventional Kirkwood-Riseman formalism (with and without hydrodynamic preaveraging approximation) are compared in the calculation of the intrinsic viscosity of a Gaussian chain. It is discussed that the Green-Kubo-type formula for the intrinsic viscosity is correct to order ε(=4-d, d being the spatial dimension). Then it is shown that without self-avoiding interaction the two formalisms give identical results to order ε; i.e., the Kirkwood-Riseman formalism is as reliable as the Green-Kubo formalism without self-avoiding interactions. With self-avoiding interaction it is argued that the validity of the Kirkwood-Riseman formalism cannot be expected.

Original languageEnglish (US)
Pages (from-to)2276-2285
Number of pages10
JournalThe Journal of Chemical Physics
Issue number4
StatePublished - 1986

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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