As one of the paradigmatic models of non-equilibrium systems, the asymmetric simple exclusion process（ASEP） has been widely used to study many physical, chemical, and biological systems. The ASEP shows a range of no...As one of the paradigmatic models of non-equilibrium systems, the asymmetric simple exclusion process（ASEP） has been widely used to study many physical, chemical, and biological systems. The ASEP shows a range of nontrivial macroscopic phenomena, among which, the spontaneous symmetry breaking has gained a great deal of attention. Nevertheless,as a basic problem, it has been controversial whether there exist one or two symmetry-broken phases in the ASEP. Based on the mean field analysis and current minimization principle, this paper demonstrates that one of the broken-symmetry phases does not exist in a bidirectional two-lane ASEP with narrow entrances. Moreover, an exponential decay feature is observed,which has been used to predict the phase boundary in the thermodynamic limit. Our findings might be generalized to other ASEP models and thus deepen the understanding of the spontaneous symmetry breaking in non-equilibrium systems.展开更多
在新能源汽车行业迅速发展的背景下,新能源汽车校企合作教学模式成为职业教育领域的重要趋势。基于此,文章分析了ASEP(Automotive Service Educational Program)项目的运行机制及教学模式,提出实践导向的教学、动态合作以及持续改进的...在新能源汽车行业迅速发展的背景下,新能源汽车校企合作教学模式成为职业教育领域的重要趋势。基于此,文章分析了ASEP(Automotive Service Educational Program)项目的运行机制及教学模式,提出实践导向的教学、动态合作以及持续改进的反馈机制等建议,旨在探讨ASEP项目在校企合作教学中创新教学模式,提高教学质量,培养符合行业需求的高技能人才。展开更多
基金Project supported by the National Basic Research Program of China(Grant No.2012CB725404)the National Natural Science Foundation of China(Grant Nos.11422221 and 11672289)
文摘As one of the paradigmatic models of non-equilibrium systems, the asymmetric simple exclusion process（ASEP） has been widely used to study many physical, chemical, and biological systems. The ASEP shows a range of nontrivial macroscopic phenomena, among which, the spontaneous symmetry breaking has gained a great deal of attention. Nevertheless,as a basic problem, it has been controversial whether there exist one or two symmetry-broken phases in the ASEP. Based on the mean field analysis and current minimization principle, this paper demonstrates that one of the broken-symmetry phases does not exist in a bidirectional two-lane ASEP with narrow entrances. Moreover, an exponential decay feature is observed,which has been used to predict the phase boundary in the thermodynamic limit. Our findings might be generalized to other ASEP models and thus deepen the understanding of the spontaneous symmetry breaking in non-equilibrium systems.
文摘在新能源汽车行业迅速发展的背景下,新能源汽车校企合作教学模式成为职业教育领域的重要趋势。基于此,文章分析了ASEP(Automotive Service Educational Program)项目的运行机制及教学模式,提出实践导向的教学、动态合作以及持续改进的反馈机制等建议,旨在探讨ASEP项目在校企合作教学中创新教学模式,提高教学质量,培养符合行业需求的高技能人才。
