Homogeneity and Size Effects on the Liquid-Gas Coexistence Curve

Details Homogeneity and Size Effects on the Liquid-Gas Coexistence Curve Homogeneity and Size Effects on the Liquid-Gas Coexistence Curve

2003-01-13

arxiv.org/abs/nucl-th/0301044v1

Nucl.Phys. A724 (2003) 233-240

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures

Scientific paper

10.1016/S0375-9474(03)01365-4

The effects of (in)homogeneity and size on the phase diagram of Lennard-Jones fluids are investigated. It is shown that standard multifragmentation scenarios (finite equilibrated systems with conserved center of mass position and momentum) are implying a strong radial inhomogeneity of the system strongly affecting the phase diagram. The homogeneity constraint is therefore necessary for finite systems in order to align to the ``meaning'' of infinite systems phase diagrams. In this respect, a method which deduces the equation of state of homogeneous finite systems from the one corresponding to bulk matter is designed. The resultant phase diagrams show a strong dependence on the system's size.

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