Abstract
Green–Kubo expressions for transport coefficients have three distinct terms arising from correlation of the kinetic and potential parts of appropriate fluxes. Bound state effects on transport coefficients at finite density are studied here by an exact calculation of the first density coefficient for the kinetic-potential cross terms. Attention is restricted to the special case of a square well potential. Results for the shear viscosity and thermal conductivity are reported. A strong dependence on temperature is found for both scattering and bound state contributions. Effects of bound states dominate those from scattering states for temperatures approaching the critical temperature. Agreement with available computer simulation results is obtained.
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