Generalized Collective Excitations in Supercritical Argon

Taras Bryk (1) , Giancarlo Ruocco (2)

1 ICMP - Institute for Condensed Matter Physics of NAS of Ukraine
2 Dipartimento di Fisica

Dispersion and damping of collective excitations in supercritical Argon along isothermal line of 280~K are studied by a combination of molecular dynamics simulations and Generalized Collective Mode (GCM) analysis. "Positive dispersion" of collective excitations and its dependence on density is discussed on the basis of GCM theory of "positive dispersion".

Mots clés: Physical Sciences

Domaines: Matière Condensée [cond-mat]

Taras Bryk, Giancarlo Ruocco. Generalized Collective Excitations in Supercritical Argon. Molecular Physics, 2011, pp.1. ⟨10.1080/00268976.2011.617321⟩. ⟨hal-00745614⟩