Two-particle dark state in the transport through a triple quantum dot
Two-particle dark state in the transport through a triple quantum dot
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DOI：
10.1103/physrevb.80.115313
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发表时间：
2009-05
影响因子：
3.7
通讯作者：
C. Poltl;C. Emary;T. Brandes
中科院分区：
文献类型：
--
作者：
C. Poltl;C. Emary;T. Brandes
我们研究了通过三角形几何结构中的三重量子点的输运，并施加偏压，使得单电荷态和双电荷态都参与其中。我们描述了形成的电子暗态的相干叠加，阻止电流在系统中的流动，并专注于一个双电子暗态的形成。我们讨论的条件下，这样的状态的形式和描述的签名，它留下的传输特性，如微分电导和散粒噪声。
We study transport through a triple quantum dot in a triangular geometry with applied bias such that both singly- and doubly-charged states participate. We describe the formation of electronic dark states\char22{}coherent superpositions that block current flow\char22{}in the system, and focus on the formation of a two-electron dark state. We discuss the conditions under which such a state forms and describe the signatures that it leaves in transport properties such as the differential conductance and shot noise.