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相关论文: Controlled dephasing in single-dot Aharonov-Bohm i…

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We investigate the dephasing effect of the Kondo singlet in an Aharonov-Bohm interferometer with a quantum dot coupling to left and right electrodes. By employing the cluster expansions, the equations of motion of Green functions are…

强关联电子 · 物理学 2008-01-08 Ming-Lun Chen

We theoretically investigated the dephasing in an Aharonov-Bohm interferometer containing a lateral double quantum dot induced by coupling with a quantum dot charge sensor. We employed the interpolative 2nd-order perturbation theory to…

介观与纳米尺度物理 · 物理学 2015-05-19 T. Kubo , Y. Tokura , S. Tarucha

We use the Landauer-B\"{u}ttiker formalism to study the mesoscopic Fano effect in Aharonov-Bohm rings with an embedded two-dimensional noninteracting dot. The magnetic field dependence of the dot levels leads to a global shift of the Fano…

介观与纳米尺度物理 · 物理学 2009-11-11 Valeriu Moldoveanu , Mugurel Ţolea , Vidar Gudmundsson , Andrei Manolescu

A detailed description of the tunneling processes within Aharonov-Bohm (AB) rings containing two-dimensional quantum dots is presented. We show that the electronic propagation through the interferometer is controlled by the spectral…

介观与纳米尺度物理 · 物理学 2009-11-10 V. Moldoveanu , M. Ţolea , A. Aldea , B. Tanatar

We theoretically investigate electron transport through an Aharonov-Bohm interferometer containing laterally coupled double quantum dots. We introduce the indirect coupling parameter $\alpha$, which characterizes the strength of the…

介观与纳米尺度物理 · 物理学 2009-11-11 Toshihiro Kubo , Yasuhiro Tokura , Tsuyoshi Hatano , Seigo Tarucha

We demonstrate delicate control over the Kondo effect and its interplay with quantum interference in an Aharonov-Bohm interferometer containing one Kondo dot and one noninteracting dot. It is shown that the Kondo resonance undergoes a…

强关联电子 · 物理学 2013-06-10 Tie-Feng Fang , Hong-Gang Luo

In a recent Letter, Jiang, Sun, Xie and Wang [Phys. Rev. Lett. 93, 076802 (2004), cond-mat/0408261] study transport through an interacting quantum dot embedded in one arm of an Aharonov-Bohm interferometer. Based on a theoretical analysis…

介观与纳米尺度物理 · 物理学 2016-08-31 Jürgen König , Yuval Gefen , Alessandro Silva

The physics of a system consisting of an Aharonov Bohm (AB) interferometer containing a single level interacting quantum dot (QD) on one of its arms, and attached to normal (N) and superconducting (S) leads is studied and elucidated. Here…

强关联电子 · 物理学 2009-11-10 Anatoly Golub , Yshai Avishai

We demonstrate real-time detection of self-interfering electrons in a double quantum dot embedded in an Aharonov-Bohm interferometer, with visibility approaching unity. We use a quantum point contact as a charge detector to perform…

介观与纳米尺度物理 · 物理学 2015-05-13 S. Gustavsson , R. Leturcq , M. Studer , T. Ihn , K. Ensslin , D. C. Driscoll , A. C. Gossard

After briefly reviewing the Fano effect, we explain why it may be relevant to various types of Aharonov-Bohm interferometers. We discuss both closed (electron conserving) and open interferometers, in which one path contains either a simple…

介观与纳米尺度物理 · 物理学 2019-08-17 O. Entin-Wohlman , A. Aharony , Y. Imry , Y. Levinson

The Fano effect, which arises from an interference between a localized state and the continuum, reveals a fundamental aspect of quantum mechanics. We have realized a tunable Fano system in a quantum dot (QD) in an Aharonov-Bohm…

介观与纳米尺度物理 · 物理学 2009-11-07 Kensuke Kobayashi , Hisashi Aikawa , Shingo Katsumoto , Yasuhiro Iye

We apply time-dependent density-functional theory to study many-electron transport in Aharonov-Bohm interferometers in a non-equilibrium situation. The conductance properties in the system are complex and depend on the enclosed magnetic…

强关联电子 · 物理学 2013-10-31 A. Salman , V. Kotimaki , A. Siddiki , E. Rasanen

We theoretically investigate the transport properties of a molecule embedded in one arm of a mesoscopic Aharonov-Bohm interferometer. Due to the presence of phonons the molecule level position ($\epsilon_d$) and the electron-electron…

介观与纳米尺度物理 · 物理学 2015-05-18 Jong Soo Lim , Rosa Lopez , Gloria Platero , Pascal Simon

We consider the currents flowing in a solid-state interferometer under the effect of both an Aharonov-Bohm phase and a bias potential. Expressions are obtained for these currents, allowing for electronic or electron-boson interactions,…

介观与纳米尺度物理 · 物理学 2009-11-10 O. Entin-Wohlman , Y. Imry , A. Aharony

We study three-terminal linear and nonlinear transport through an Aharonov-Bohm interferometer containing a double quantum dot using the nonequilibrium Green's function method. Under the condition that one of the three terminals is a…

介观与纳米尺度物理 · 物理学 2015-05-28 Toshihiro Kubo , Yuki Ichigo , Yasuhiro Tokura

The Fano effect, which occurs through the quantum-mechanical cooperation between resonance and interference, can be observed in electron transport through a hybrid system of a quantum dot and an Aharonov-Bohm ring. While a clear correlation…

介观与纳米尺度物理 · 物理学 2016-08-31 Kensuke Kobayashi , Hisashi Aikawa , Shingo Katsumoto , Yasuhiro Iye

We present a microscopic picture of quantum transport in quantum antidots in the quantum Hall regime taking electron interactions into account. We discuss the edge state structure, energy level evolution, charge quantization and…

介观与纳米尺度物理 · 物理学 2015-05-13 S. Ihnatsenka , I. V. Zozoulenko , G. Kirczenow

We develop a non-perturbative numerical method to study tunneling of a single electron through an Aharonov-Bohm ring where several strongly interacting electrons are bound. Inelastic processes and spin-flip scattering are taken into…

强关联电子 · 物理学 2016-08-31 R. Zitko , J. Bonca

Aharonov-Bohm oscillations are studied in the magnetoconductance of a micron-sized open quantum ring coupled capacitively to a Coulomb-blockaded quantum dot. As the plunger gate of the dot is modulated and tuned through a conductance…

介观与纳米尺度物理 · 物理学 2016-08-31 L. Meier , A. Fuhrer , T. Ihn , K. Ensslin , W. Wegscheider , M. Bichler

We study the steady-state characteristics and the transient behavior of the nonequilibrium double-dot Aharonov-Bohm interferometer using analytical tools and numerical simulations. Our simple setup includes noninteracting degenerate quantum…

介观与纳米尺度物理 · 物理学 2013-05-30 Salil Bedkihal , Malay Bandyopadhyay , Dvira Segal
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