Coherently manipulating flying qubits in a quantum wire with a magnetic impurity

被引：1
|
作者：
Zhou, L. [1 ]
Lu, J.
机构：
[1] Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Hunan, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL B | 2010年 / 74卷 / 03期
关键词：
ENTANGLEMENT; TRANSMISSION; RESONANCES; TRANSPORT;
D O I：
10.1140/epjb/e2010-00088-3
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We study the effect of a magnetic impurity with spin-half on a single propagating electron in a one-dimensional model system via the tight-binding approach. Due to the spin-dependent interaction, the scattering channel for the flying qubit is split, and its transmission spectrum is obtained. It is found that, the spin orientation of the impurity plays the role as a spin state filter for a flying qubit.
引用
收藏
页码：373 / 378
页数：6
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