Title

Disorder-Induced Topological Defects in a d=2 Elastic Medium at Zero Temperature

Author(s)/Creator(s)

Alan Middleton, Syracuse UniversityFollow

Document Type

Article

Date

7-28-1998

Language

English

Disciplines

Physics

Description/Abstract

The density and correlations of topological defects are investigated numerically in a model of a d=2 elastic medium subject to a periodic quenched random potential. The computed density of defects decreases approximately exponentially with the defect core energy. Comparing the defect-free ground state with the ground state with defects, it is found that the difference is described by string-like excitations, bounded by defect pairs, which have a fractal dimension of 1.250(3). At zero temperature, the disorder-induced defects screen the interaction of introduced vortex pairs.

Additional Information

4 pages, 4 figures included More information at http://arxiv.org/abs/cond-mat/9807374

Recommended Citation

Middleton, Alan, "Disorder-Induced Topological Defects in a d=2 Elastic Medium at Zero Temperature" (1998). Physics - All Scholarship. 199.
https://surface.syr.edu/phy/199

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.