Heterogeneities and topological defects in two-dimensional pinned liquids.

@article{Lin2006HeterogeneitiesAT,
  title={Heterogeneities and topological defects in two-dimensional pinned liquids.},
  author={J.-X. Lin and C. J. O. Reichhardt and Zohar Nussinov and Leonid P. Pryadko and Cynthia J Olson Reichhardt},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2006},
  volume={73 6 Pt 1},
  pages={
          061401
        }
}
We simulate a model of repulsively interacting colloids on a commensurate two-dimensional triangular pinning substrate where the amount of heterogeneous motion that appears at melting can be controlled systematically by turning off a fraction of the pinning sites. We correlate the amount of heterogeneous motion with the average topological defect number, time-dependent defect fluctuations, colloid diffusion, and the form of the van Hove correlation function. When the pinning sites are all off… 
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