Elastic lines on splayed columnar defects studied numerically

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2006
Major/Subject
Mcode
Degree programme
Language
en
Pages
094517/1-9
Series
Physical Review B, Volume 73, Issue 9
Abstract
We investigate by exact optimization method properties of two- and three-dimensional systems of elastic lines in presence of splayed columnar disorder. The ground state of many lines is separable both in two (2D) and three dimensions (3D), leading to a random walk-like roughening in 2D and ballistic behavior in 3D. Furthermore, we find that in the case of pure splayed columnar disorder, in contrast to point disorder, there is no entanglement transition in 3D. Entanglement can be triggered by perturbing the pure splay system with point defects.
Description
Keywords
combinatorial optimization, disordered systems
Other note
Citation
Petäjä, Viljo & Sarjala, Matti & Alava, Mikko J. & Rieger, Heiko. 2006. Elastic lines on splayed columnar defects studied numerically. Physical Review B. Volume 73, Issue 9. 094517/1-9. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.73.094517.