Numerical Evaluation of Quantum Effects on Transport Cross Sections

Abstract

Quantum-mechanical calculations of the transport cross sections Q(1)☆ and Q(2)☆ and the associated Ω(n,t)☆ integrals for a Lennard-Jones (12, 6) potential are discussed. The computations are made for three values of the quantum parameter Λ* (=1, 2, 3), and include the effect of statistics. The quantum effects become quite important at reduced temperatures T* below about unity. The quantum corrections to the integrals are negative at moderate temperatures, but become positive at higher temperatures.