title: Potential energy landscape equation of state.
abstract: Depth, number, and shape of the basins of the potential energy landscape are the key ingredients of the inherent structure thermodynamic formalism introduced by Stillinger and Weber [F. H. Stillinger and T. A. Weber, Phys. Rev. A 25, 978 (1982)]. Within this formalism, an equation of state based only on the volume dependence of these landscape properties is derived. Vibrational and configurational contributions to pressure are sorted out in a transparent way. Predictions are successfully compared with data from extensive molecular dynamics simulations of a simple model for the fragile liquid orthoterphenyl.
authors.affiliation: Dipartimento di Fisica, INFM UdR and INFM, Center for Statistical Mechanics and Complexity, Università di Roma "La Sapienza," Piazzale Aldo Moro 2, I-00185, Roma, Italy.
authors.forename: Emilia
authors.initials: E
authors.lastname: La Nave
authors.forename: Stefano
authors.initials: S
authors.lastname: Mossa
authors.forename: Francesco
authors.initials: F
authors.lastname: Sciortino