Metastability, negative specific heat and weak mixing in classical long-range many-rotator system

Benedito J. C. Cabral, Constantino Tsallis

We perform a molecular dynamical study of the isolated $d=1$ classical Hamiltonian $\mathcal{H}=1/2{\sum }_{i=1}^N{L}_i^2+{\sum }_{i\ne j}\frac{1-cos({\theta }_i-{\theta }_j)}{r_{ij}^{\alpha }};(\alpha \ge 0)$,…