Comment on a Paper of Mori on Time-Correlation Expressions for Transport Properties

Key Points

• The objective is to analyze and comment on the thermal conductivity expressions derived by Mori in comparison to previous derivations by the author.
• Presented a commentary on Mori's auto-correlation expression for thermal conductivity.
• Compared the expression to an earlier formulation by the author.
• The expressions are shown to be apparently different but fundamentally similar.
• Clarification on the implications of these expressions for understanding transport properties.