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Analytical and simulation studies of driven diffusive system with asymmetric heterogeneous interactions.
Yu-Qing Wang1,2, Ji-Xin Wang3, Wan-He Li3
1School of Mechanical Engineering, Hefei University of Technology, Hefei, 230009, China. yuqingw@mail.ustc.edu.cn.
Scientific Reports
|November 4, 2018
Summary
This study investigates multiple totally asymmetric simple exclusion processes (TASEP) with heterogeneous interactions. Introducing these interactions optimizes particle transport and reveals universal laws for driven diffusive systems.
Area of Science:
- Statistical Mechanics
- Condensed Matter Physics
- Complex Systems
Background:
- The totally asymmetric simple exclusion process (TASEP) models self-driven particles on lattices.
- Existing research often simplifies interactions, limiting applicability to complex systems.
Purpose of the Study:
- Investigate a multi-TASEP system with asymmetric heterogeneous interactions.
- Determine universal laws governing particle configurations and transport.
- Analyze the impact of heterogeneous interactions on system dynamics.
Main Methods:
- Detailed balance principle for analyzing particle configurations.
- Analytical methods and Monte Carlo simulations.
- Examination of various system topologies and transition rates.
Main Results:
- Local densities increase monotonically with global density and are spatially homogeneous.
- Local currents increase non-monotonically with global density and correlate with forward rates.
- Heterogeneous interactions significantly influence particle configurations in adjacent subsystems.
Conclusions:
- Heterogeneous interactions enhance total current and optimize transport in multi-TASEP systems.
- The findings contribute to understanding microscopic dynamics and non-equilibrium behavior.
- This work provides a more realistic model for complex driven diffusive systems.
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