在合的非对称和对称排除过程中的不平衡稳定状态
Atri Goswami1, Utsa Dey2, Sudip Mukherjee2
1Gurudas College, 1/1, Suren Sarkar Road, Jewish Graveyard, Phool Bagan, Narkeldanga, Kolkata 700054, West Bengal, India.
Physical review. E
|December 20, 2023
概括
我们推出了一种具有扩散和驱动排斥动态的双车道模型. 扩散性调整不平衡稳定状态中的密度和相位,连接不同的运输模式.
科学领域:
- 统计力学 统计力学
- 软物质物理学 软物质物理学
- 生物物理学的生物物理.
背景情况:
- 复杂的系统往往表现出从简单的交互组件出现的新兴行为.
- 了解不平衡稳定状态对于模拟各种物理和生物现象至关重要.
- 结合运输过程是各种科学领域的基础.
研究的目的:
- 为了研究一个新的一维,两条车道模型与合的扩散和驱动排斥动力学.
- 阐明这种合系统的通用非均稳定状态和相位行为.
- 确定模型与现有运输模型的联系,以及其与生物运输的相关性.
主要方法:
- 开发一个具有开放边界的单维 (1D) 双车道模型.
- 在一条车道中纳入扩散动态,在另一条车道中纳入不对称的排斥动态.
- 通过粒子交换和使用平均场理论和蒙特卡洛模拟的分析进行相互合.
主要成果:
- 确定了SEP扩散率 (D) 作为在不平衡稳定状态下对SEP和TASEP密度的关键调整参数.
- 证明D可以在排斥动力学中诱导相位并存,并在扩散动力学中诱导光滑密度变化.
- 获得了模型的相位图,显示SEP和TASEP阶段之间的对应.
结论:
- 拟议的模型作为纯TASEP和带有Langmuir动力学 (LK) 的TASEP的统一框架.
- 该模型提供了关于分子电机的细胞生物运输的见解.
- 扩散,驱动动力学和粒子交换之间的相互作用导致了丰富的新兴现象.
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