arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 0708.0259cond-mat.stat-mechcond-mat.soft
收藏

非对称排它过程的动态有界性

Dynamic Boundaries in Asymmetric Exclusion Processes

Sarah A. Nowak, Pak-Wing Fok, Tom Chou

摘要:

我们研究了具有朗缪尔动力学和涨落壁的一维非对称排斥过程的动力学。在左边界,粒子被注入到晶格上;从那里,粒子跳到右边。沿着晶格,粒子可以吸附或解吸,并且右边界由壁粒子限定。限制壁粒子具有固有的前向和后向跳跃,净漂移,不能解吸。执行蒙特卡罗模拟,并使用移动帧有限段的方法耦合到平均场论,我们发现的参数制度中,壁获得一个稳定状态的位置。在其他情况下,壁将要么向左漂移并在注射部位从晶格上脱落,要么无限向右漂移。我们的研究结果进行了讨论的背景下,非平衡相的系统,波动的边界层,和颗粒密度在实验室框架与框架的波动壁。

英文摘要:

We investigate the dynamics of a one-dimensional asymmetric exclusion process with Langmuir kinetics and a fluctuating wall. At the left boundary, particles are injected onto the lattice; from there, the particles hop to the right. Along the lattice, particles can adsorb or desorb, and the right boundary is defined by a wall particle. The confining wall particle has intrinsic forward and backward hopping, a net leftward drift, and cannot desorb. Performing Monte Carlo simulations and using a moving-frame finite segment approach coupled to mean field theory, we find the parameter regimes in which the wall acquires a steady state position. In other regimes, the wall will either drift to the left and fall off the lattice at the injection site, or drift indefinitely to the right. Our results are discussed in the context of non-equilibrium phases of the system, fluctuating boundary layers, and particle densities in the lab frame versus the frame of the fluctuating wall.

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。

↑