arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2002.02841cond-mat.stat-mechcond-mat.soft
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一维周期性硬核晶格气体中的驱动示踪粒子

Driven Tracers in a One-Dimensional Periodic Hard-Core Lattice Gas

Ivan Lobaskin, Martin R. Evans

AI总结:

研究环上对称硬核粒子环境中的完全不对称示踪粒子,显式推导单示踪粒子稳态性质并推广至多示踪粒子系统,揭示了多示踪粒子运动更快的协同效应。

摘要:

研究了环上对称硬核粒子环境中的完全不对称示踪粒子。对于单个示踪粒子,显式推导了包括环境密度分布和示踪粒子速度在内的稳态性质。系统表明,含多个示踪粒子的系统可分解为单示踪粒子子系统,从而将单示踪粒子结果推广至任意数量的示踪粒子。我们证明了协同效应的存在,即在相同大小和密度的环境中,多个示踪粒子的运动速度高于单个示踪粒子。解析计算通过模拟得到验证。结果与相关系统的已有结果进行了比较。

英文摘要:

Totally asymmetric tracer particles in an environment of symmetric hard-core particles on a ring are studied. Stationary state properties, including the environment density profile and tracer velocity are derived explicitly for a single tracer. Systems with more than one tracer are shown to factorise into single-tracer subsystems, allowing the single tracer results to be extended to an arbitrary number of tracers. We demonstrate the existence of a cooperative effect, where many tracers move with a higher velocity than a single tracer in an environment of the same size and density. Analytic calculations are verified by simulations. Results are compared to established results in related systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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