Zheng Xiao, Luo JunYan, Jin Jinshuang, Yan YiJing
Department of Chemistry, Hong Kong University of Science and Technology, Kowloon, Hong Kong.
J Chem Phys. 2009 Mar 28;130(12):124508. doi: 10.1063/1.3095424.
Transient electronic dynamics of a single-lead double-quantum-dot system is significantly affected by intrasystem or lead-mediated interdot coupling. Unique occupancy-state transition features are distinguished in the response current spectrum, due to the presence of irreducible frequency-dependent correlation functions. The complex non-Markovian effects are demonstrated numerically by implementing the exact theory, based on the hierarchical equations of motion for the reduced dynamics of quantum transport systems. They are expected to play a prevalent and nontrivial role in the quantum dynamics of realistic nanoelectronic devices.
单引线双量子点系统的瞬态电子动力学受到系统内或引线介导的点间耦合的显著影响。由于存在不可约的频率相关关联函数，在响应电流谱中可区分出独特的占据态跃迁特征。基于量子输运系统约化动力学的运动方程层次，通过实施精确理论对复杂的非马尔可夫效应进行了数值演示。预计它们将在实际纳米电子器件的量子动力学中发挥普遍且重要的作用。
