一维扩散反应系统的电流波动通过张量网络
1Nanjing Normal University, School of Physics and Technology, Nanjing 210023, China.
Physical review. E
|January 21, 2026
概括
张量网络分析1D扩散反应系统中的电流波动. 发现像孔和电子这样的电荷载体之间的反应减轻了这些波动,这表明有一个上限.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 统计力学 统计力学
- 计算物理 计算物理
背景情况:
- 具有多个电荷载体的扩散反应系统在半导体物理学中至关重要.
- 了解当前波动是描述系统动态和稳定的关键.
- 不平衡的边界条件驱动1D系统中的复杂行为.
研究的目的:
- 用张量网络来描述1D扩散反应系统中的电流波动.
- 调查对生成和重组反应对电荷载体动态的作用.
- 为电流统计数字计算大偏差函数.
主要方法:
- 使用张量网络,特别是密度矩阵重规范化组 (DMRG).
- 对电流的大偏差函数的数值计算.
- 在不平衡的边界条件下对完整计数统计的分析.
主要成果:
- 波动定理被验证为电流.
- 反应 (对生成和重组) 已被证明对电流波动有抑制作用.
- 导出了一个不平等,表明当前波动的上限.
结论:
- 张量网络方法为研究复杂的运输现象提供了强大的工具.
- 反应动力学在调节扩散系统中的电流波动方面发挥着重要作用.
- 这些发现表明,在这种系统中,当前变化的基本限制.
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