Negative specific heat in a Lennard-Jones-like gas with long-range interactions

Details Negative specific heat in a Lennard-Jones-like gas with long-range interactions Negative specific heat in a Lennard-Jones-like gas with long-range interactions

2001-09-26

arxiv.org/abs/cond-mat/0109504v2

Physica A 305 (1--2), 148--151 (2004)

Physics

Condensed Matter

Statistical Mechanics

LaTeX, 8 pages, 4 eps figures, contributed paper to the Proceedings of the International School and Workshop on Nonextensive T

Scientific paper

10.1016/S0378-4371(01)00654-9

We study, through molecular dynamics, a conservative two-dimensional
Lennard-Jones-like gas (with attractive potential $\propto r^{-\alpha}$). We
consider the effect of the range index $\alpha$ of interactions, number of
particles, total energy and particle density. We detect negative specific heat
when the interactions become long-ranged ($0\le \alpha/d<1$).

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