An Alternative to Adam-Gibbs

Finally, we note that a different type of exponential scaling that links single-particle dynamics to entropy has now been found to hold for atomistic super-cooled liquids.122 In particular, the relationship, 

Because the relationship in Eq. [15] involves excess entropy sex instead of configurational entropy Sc, it has three important practical advantages over the AG relationship that make it a particularly intriguing subject of future investigation. First, unlike Sc, the quantity sex is a standard thermodynamic variable123 that does not require knowledge of the detailed topographical information about the PEL. Second, the determination of sl2) (see Eq. [3]), 

McQuarrie, Statistical Mechanics, Harper-Collins, New York, 1976. 

Chapman and T. G. Cowling, The Mathematical Theory of Non-Uniform Gases, 

Hirschfelder, C. F. Curtiss, and R. B. Bird, Molecular. Theory of Gases and Liquids, 

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