论文标题
在定期驱动的量子点中电子传输的全面计数统计数据
Full counting statistics for electron transport in periodically driven quantum dots
论文作者
论文摘要
时间依赖性驱动会影响系统的量子和热力学波动，改变了电子噪声的熟悉的物理图片，这是有关量子传输的微观机制的重要信息来源。全面计数统计数据（FCS）是访问所有电流的所有累积物，是研究非平衡量子系统波动的强大理论方法。在本文中，我们提出了FC的应用来考虑定期驱动的连接。 Floquet理论用于时间动力学和非平衡计数绿色的功能的组合可以实用该系统的FC。计数场绿色的功能用于计算矩生成函数，从而计算电子电流的时间平均累积物。该理论使用模型系统中的不同传输方案进行了说明。
Time-dependent driving influences the quantum and thermodynamic fluctuations of a system, changing the familiar physical picture of electronic noise which is an important source of information the about microscopic mechanism of quantum transport. Giving access to all cumulants of the current, the full counting statistics (FCS) is the powerful theoretical method to study fluctuations in nonequilibrium quantum systems. In this paper, we propose the application of FCS to consider periodic driven junctions. The combination of Floquet theory for time dynamics and nonequilibrium counting-field Green's functions enables the practical formulation of FCS for the system. The counting-field Green's functions are used to compute the moment generating function, allowing for the calculation of the time-averaged cumulants of the electronic current. The theory is illustrated using different transport scenarios in model systems.
