Extreme case of density scaling: The Weeks-Chandler-Andersen system at low temperatures.

  title={Extreme case of density scaling: The Weeks-Chandler-Andersen system at low temperatures.},
  author={Eman Attia and Jeppe C. Dyre and Ulf R. Pedersen},
  journal={Physical review. E},
  volume={103 6-1},
This paper studies numerically the Weeks-Chandler-Andersen system, which is shown to obey hidden scale invariance with a density-scaling exponent that varies from below 5 to above 500. This unprecedented variation makes it advantageous to use the fourth-order Runge-Kutta algorithm for tracing out isomorphs. Good isomorph invariance of structure and dynamics is observed over more than three orders of magnitude temperature variation. For all state points studied, the virial potential-energy… 
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