Bias-induced chiral current and geometrical blockade in triangular triple quantum dot
Bias-induced chiral current and geometrical blockade in triangular triple quantum dot
复制标题
三角形三量子点中偏压诱导的手性电流和几何封锁
DOI：
10.1209/0295-5075/130/17003
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发表时间：
2019-11
期刊：
影响因子：
--
通讯作者：
Yi-Jing Yan
中科院分区：
文献类型：
--
作者：
Yuan-Dong Wang;Zhen-Gang Zhu;Jian-Hua Wei;Yi-Jing Yan
我们通过解析推导和精确的层级运动方程计算，从理论上研究了一个与两个库相连的三角形三量子点（TTQD）环的量子输运性质。我们首先展示了一个……
We theoretically investigate the quantum transport properties of a triangular triple quantum dot (TTQD) ring connected to two reservoirs by an analytical derivation and an accurate hierarchical equations-of-motion calculation. We initially demonstrate a bias-induced chiral current under zero magnetic field caused by the coupling between the spin gauge field and spin current in a nonequilibrium TTQD that induces a scalar spin chirality, which lifts the chiral degeneracy and the time inversion symmetry. The chiral current oscillates with the bias within the Coulomb blockade regime, suggesting that the chiral spin qubit can be controlled by purely electrical manipulations. Then, the geometrical blockade of the transport current due to the localization of chiral states is elucidated by spectral function analysis.
DOI：
10.1088/0031-9112/12/6/014
发表时间：
1961-06
期刊：
Physics Bulletin
影响因子：
--
作者：
N. Kemmer
通讯作者：
N. Kemmer
DOI：
10.1063/1.3057154
发表时间：
1961-09
期刊：
--
影响因子：
--
作者：
L. Landau;E. Lifshitz;J. Sykes;J. Bell;E. Dill
通讯作者：
L. Landau;E. Lifshitz;J. Sykes;J. Bell;E. Dill