论文标题

tkwant:用于时间相关量子传输的软件包

Tkwant: a software package for time-dependent quantum transport

论文作者

Kloss, Thomas, Weston, Joseph, Gaury, Benoit, Rossignol, Benoit, Groth, Christoph, Waintal, Xavier

论文摘要

tkwant是用于模拟应用外部时间依赖性扰动的量子纳米电子设备的Python软件包。 tkwant是Kwant软件包(https://kwant-project.org/)的扩展,并且可以处理相同类型的系统:离散的类似紧密的类模型,该模型由连接到半插入电极的任意中央区域组成。即使在没有相互作用的情况下,这个问题也是真正的多体,并且在非平衡的Keldysh形式主义中得到了处理。 Examples of Tkwant applications include the propagation of plasmons generated by voltage pulses, propagation of excitations in the quantum Hall regime, spectroscopy of Majorana fermions in semiconducting nanowires, current-induced skyrmion motion in spintronic devices, multiple Andreev reflection, Floquet topological insulators, thermoelectric effects, and more.该代码旨在易于使用和模块化。 TKWANT是根据BSD许可证分发的免费软件,可以在https://tkwant.kwant-project.org/上找到。

Tkwant is a Python package for the simulation of quantum nanoelectronics devices to which external time-dependent perturbations are applied. Tkwant is an extension of the Kwant package (https://kwant-project.org/) and can handle the same types of systems: discrete tight-binding-like models that consist of an arbitrary central region connected to semi-infinite electrodes. The problem is genuinely many-body even in the absence of interactions and is treated within the non-equilibrium Keldysh formalism. Examples of Tkwant applications include the propagation of plasmons generated by voltage pulses, propagation of excitations in the quantum Hall regime, spectroscopy of Majorana fermions in semiconducting nanowires, current-induced skyrmion motion in spintronic devices, multiple Andreev reflection, Floquet topological insulators, thermoelectric effects, and more. The code has been designed to be easy to use and modular. Tkwant is free software distributed under a BSD license and can be found at https://tkwant.kwant-project.org/.

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