Heterogeneities and topological defects in two-dimensional pinned liquids.

  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},
  volume={73 6 Pt 1},
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… 
6 Citations

Evolution of topological defects in two-dimensional quenched colloidal systems

This work investigates the evolution of topological defects in two-dimensional (2D) quenched colloidal systems using topological current theory and finds that at the bifurcation point, a merging or splitting process appears and Nd ∝ t−2 .

Statics and dynamics of colloidal particles on optical trap arrays

We examine the statics and dynamics of charged colloids interacting with periodic optical trap arrays. In particular we study the regime where more than one colloid is confined in each trap, creating

Colloidal ionic complexes on periodic substrates: ground-state configurations and pattern switching.

In a broad parameter range between single-cluster and percolated structures, this work has found stable supercomplexes composed of six colloids forming grapelike or rocketlike structures and investigated the possibility of macroscopic pattern switching by applying external electrical fields.

Mapping between finite temperature classical and zero temperature quantum systems: Quantum critical jamming and quantum dynamical heterogeneities

Many electronic systems (e.g., the cuprate superconductors and heavy fermions) exhibit striking features in their dynamical response over a prominent range of experimental parameters. While there are

Detecting hidden spatial and spatio-temporal structures in glasses and complex physical systems by multiresolution network clustering

A general method for characterizing the “natural” structures in complex physical systems via multi-scale network analysis based on “community detection” and identifies the dominant structures (disjoint or overlapping) and general length scales by analyzing extrema of the information theory measures.

Detection of hidden structures on all scales in amorphous materials and complex physical systems: basic notions and applications to networks, lattice systems, and glasses

Recent decades have seen the discovery of numerous complex materials. At the root of the complexity underlying many of these materials lies a large number of possible contending atomic- and