随机组织与塑性脱钉
Random Organization and Plastic Depinning
摘要：
我们提供的证据表明，塑料脱钉属于同一类现象的随机组织，最近研究的周期性驱动粒子系统[L。Corte等人，4，420（2008）]。在塑性流动系统中，钉扎区对应于静止状态，运动区对应于波动状态。当突然施加一个外力时，系统最终会组织成这两种状态之一，其时间尺度在非平衡转变时按幂律发散。我们提出了一个简单的实验来测试这种过渡的胶体系统和超导涡旋系统的随机无序。
英文摘要：
We provide evidence that plastic depinning falls into the same class of phenomena as the random organization which was recently studied in periodically driven particle systems [L. Corte et al., Nature Phys. 4, 420 (2008)]. In the plastic flow system, the pinned regime corresponds to the quiescent state and the moving state corresponds to the fluctuating state. When an external force is suddenly applied, the system eventually organizes into one of these two states with a time scale that diverges as a power law at a nonequilibrium transition. We propose a simple experiment to test for this transition in colloidal systems and superconducting vortex systems with random disorder.
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