A theoretical framework for liquids that incorporates the statistical properties of an energy landscape is presented. The theory provides an explicit expression for the equation of state of a liquid and formally separates the pressure into vibrational and inherent-structure components, both above and below the ideal glass transition. Using the pressure separation, the presence of the Sastry density and its connection to the liquid spinodal is shown. Finally, the theory is used to develop an elementary model of an energy landscape based on soft-sphere particles interacting with an additional mean-field attraction.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry