Physics:Krausser–Samwer–Zaccone equation

The Krausser–Samwer–Zaccone equation describes the viscosity of liquids, including supercooled liquids upon approaching the glass transition, in terms of physical parameters; it is named after J. Krausser, and Alessio Zaccone. The Krausser–Samwer–Zaccone equation for the viscosity of a liquid reads:

[math]\displaystyle{ \eta = \exp{\left\{ \frac{V_c C_G}{k_{B}T} \exp{\left[(2+\lambda)\alpha_T T_g \left(1-\frac{T}{T_g}\right)\right]}\right\}} }[/math]

where [math]\displaystyle{ \alpha_{T} }[/math] is the thermal expansion coefficient of the liquid, and [math]\displaystyle{ \lambda }[/math] is a parameter which measures the steepness of the repulsive part of the interatomic potential.