Two-electron correlations and the acoustoelectric current through a quantum dot

G. Giavaras

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Two-electron correlations and the acoustoelectric current through a quantum dot

机译：双电子相关性和通过量子点的声电电流

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摘要

We examine the two-electron correlations in a surface acoustic wave (SAW)-induced quantum dot moving in a pinched-off channel. For a small SAW amplitude and a narrow channel, singlet and triplet states are quaside-generate and both contribute to the second plateau of the quantized acoustoelectric current. If SAW dots containing two electrons are driven through a small static dot whose confining potential is tuned by a gate pulse, then due to the Pauli principle, the current displays a fractional plateau.

机译：我们研究了表面声波（SAW）诱导的量子点在收缩通道中移动中的两个电子相关性。对于较小的SAW振幅和较窄的通道，单重态和三重态是在quaside生成的，并且都有助于量化声电电流的第二平稳期。如果包含两个电子的SAW点通过一个小的静态点驱动，该静态点的限制电势由栅极脉冲调节，则根据泡利原理，电流显示出一个小数的平稳期。

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来源
《Physical review》 |2010年第7期|p.073302.1-073302.4|共4页
作者
G. Giavaras;
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作者单位

Department of Materials, University of Oxford, Oxford OX1 3PH, United Kingdom;

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原文格式 PDF
正文语种 eng
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关键词
coulomb blockade; single-electron tunneling; 73.50.Rbacoustoelectric and magnetoacoustic effects; quantum dots;

机译：库仑封锁;单电子隧穿73.50。电声和磁声效应;量子点;

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专利

1. The fractional acoustoelectric current plateau induced by the energy-dependent tunnelling from dynamic quantum dots into an impurity dot [J] . Chen S. W., Song L. EPL . 2016,第3a4期

机译：从能量量子点到杂质点的能量依赖性隧穿引起的分数声电电流平台
2. Two-electron Bunching In Transport Through A Quantum Dot Induced By Kondo Correlations [J] . O. Zarchin, M. Zaffalon, M. Heiblum, Physical review . 2008,第24期

机译：近藤相关性引起的通过量子点传输的两电子束流
3. Acoustoelectric current transport through a double quantum dot [J] . J. Ebbecke, N. E. Fletcher, T. J. B. M. Janssen, Physical review. B, Condensed Matter And Materials Physics . 2005,第12期

机译：声电流通过双量子点传输
4. Enhancement of Current Auto- and Cross-Correlations in Double Quantum Dots [C] . European conference on physics of magnetism . 2009

机译：加强双量子点中的当前自动和互相关
5. Acoustoelectric Current in Suspended Quantum Point Contacts. [D] . Kreft, Dustin J. 2012

机译：悬浮量子点触点中的声电流。
6. Counter-diabatic driving for fast spin control in a two-electron double quantum dot [O] . Yue Ban, Xi Chen -1

机译：反绝热驱动可实现双电子双量子点的快速自旋控制
7. Three-terminal transport through a quantum dot in the Kondo regime: Conductance, dephasing, and current-current correlations [O] . Sanchez, David, Lopez, Rosa 2005

机译：在Kondo政权中通过量子点的三端传输：电导，去相位和电流 - 电流相关性
8. Mixing of Two-Electron Spin States in a Semiconductor Quantum Dot. [R] . Badescu, S. C., Reinecke, T. L. 2007

机译：半导体量子点中双电子自旋态的混合。

Two-electron correlations and the acoustoelectric current through a quantum dot

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