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题名: Quantum noise theory for quantum transport through nanostructures
作者: Zhao, N ;  Zhu, JL ;  Liu, RB ;  Sun, CP
刊名: NEW JOURNAL OF PHYSICS
出版日期: 2011
卷号: 13, 期号:*, 页码:13005
关键词: SHOT-NOISE ;  OSCILLATIONS ;  EQUATIONS ;  SYSTEMS ;  DRIVEN ;  FIELDS ;  OUTPUT ;  INPUT
学科分类: Physics
通讯作者: Liu, RB (reprint author), Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China.
部门归属: [Liu, R-B] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China; [Zhao, Nan; Zhu, Jia-Lin] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Sun, C. P.] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We have developed a quantum noise approach for studying quantum transport through nanostructures. The nanostructures, such as quantum dots, are regarded as artificial atoms, subject to quasi-equilibrium fermionic reservoirs of electrons in biased leads. Noise operators characterizing the quantum fluctuation in the reservoirs are related to the damping and fluctuation of the artificial atoms through the quantum Langevin equation. The average current and current noise are derived in terms of the reservoir noise correlations. In the white-noise limit, we show that the current and current noise can be calculated exactly by the quantum noise approach, even in the presence of interactions such as Coulomb blockade. As a typical application, the average current and current noise through a single quantum dot are studied.
资助者: Hong Kong RGC [CUHK402207]; NSFC [10574077, 10774085, 90203018, 10474104, 60433050, 10704023];
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000288903600005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14453
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Recommended Citation:
Zhao, N,Zhu, JL,Liu, RB,et al. Quantum noise theory for quantum transport through nanostructures[J]. NEW JOURNAL OF PHYSICS,2011,13(*):13005.
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