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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

We show that an Aharonov-Bohm (AB) ring with asymmetric electron injection can act as a coherent detector of electron dephasing. The presence of a dephasing source in one of the two arms of a moderately-to-highly asymmetric ring changes the…

介观与纳米尺度物理 · 物理学 2010-05-24 E. Strambini , L. Chirolli , V. Giovannetti , F. Taddei , R. Fazio , V. Piazza , F. Beltram

We investigate the effect of electron-electron interactions on Aharonov-Bohm (AB) current oscillations in nanorings formed by a chain of metallic quantum dots. We demonstrate that electron-electron interactions cause electron dephasing…

介观与纳米尺度物理 · 物理学 2010-02-16 Andrew G. Semenov , Andrei D. Zaikin

We theoretically analyze the effect of electron-electron interactions on Aharonov-Bohm (AB) current oscillations in ring-shaped systems with metallic quantum dots pierced by external magnetic field. We demonstrate that electron-electron…

介观与纳米尺度物理 · 物理学 2009-04-21 Andrew G. Semenov , Dmitri S. Golubev , Andrei D. Zaikin

We report experiments on the interference through spin states of electrons in a quantum dot (QD) embedded in an Aharonov-Bohm (AB) interferometer. We have picked up a spin-pair state, for which the environmental conditions are ideally…

介观与纳米尺度物理 · 物理学 2009-11-10 Hisashi Aikawa , Kensuke Kobayashi , Akira Sano , Shingo Katsumoto , Yasuhiro Iye

We develop a non-perturbative numerical method to study a single electron tunneling through an Aharonov-Bohm ring in the presence of bound, interacting electrons. Inelastic processes and spin-flip scattering are properly taken into account.…

强关联电子 · 物理学 2007-05-23 Rok Zitko , Janez Bonca

Electronic transport through a quantum dot chain embodied in an Aharonov-Bohm interferometer is theoretically investigated. In such a system, it is found that only for the configurations with the same-numbered quantum dots side-coupled to…

介观与纳米尺度物理 · 物理学 2015-05-13 Yu Han , Weijiang Gong , Haina Wu , Guozhu Wei

The interplay between interference effects and electron-electron interactions in electron transport through an interacting double quantum dot system is investigated using a hierarchical quantum master equation approach which becomes exact…

介观与纳米尺度物理 · 物理学 2013-12-24 R. Härtle , G. Cohen , D. R. Reichman , A. J. Millis

Real-time nonequilibrium quantum dynamics of electrons in double-dot Aharonov-Bohm (AB) interferometers is studied using an exact solution of the master equation. The building of the coherence between the two electronic paths shows up via…

介观与纳米尺度物理 · 物理学 2013-05-30 Matisse Wei-Yuan Tu , Wei-Min Zhang , Jinshuang Jin , O. Entin-Wohlman , A. Aharony

In order to investigate the effects of interference and interaction in adiabatic pumping, we consider an Aharonov-Bohm (AB) interferometer with a quantum dot embedded either in one or in both arms. We employ a real-time formalism and we…

介观与纳米尺度物理 · 物理学 2010-02-02 Bastian Hiltscher , Michele Governale , Jürgen König

We investigate theoretically the transport of non--interacting electrons through an Aharanov--Bohm (AB) interferometer with two quantum dots (QD) embedded into its arms. In the Coulomb-blockade regime, transport through each QD proceeds via…

无序系统与神经网络 · 物理学 2009-11-10 Hans A. Weidenmueller

We present a nonperturbative approach which allows to evaluate the weak localization correction to the conductivity of disordered conductors in the presence of interactions. The effect of the electron-electron interaction on the…

介观与纳米尺度物理 · 物理学 2009-10-31 A. D. Zaikin , D. S. Golubev

We study electron transport through multiply-connected mesoscopic geometries containing interacting quantum dots. Our formulation covers both equilibrium and non-equilibrium physics. We discuss the relation of coherent transport channels…

介观与纳米尺度物理 · 物理学 2009-11-07 Jürgen König , Yuval Gefen

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

In the comment by Konig, Gefen, and Silva, their main point is to question the approximation we used in solving the Green's function. They believe that this approximative method is inappropriate to describe spin-flip-related dephasing…

介观与纳米尺度物理 · 物理学 2009-11-10 Zhao-tan Jiang , Qing-feng Sun , X. C. Xie , Yupeng Wang

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

We consider the phase-coherent transport of electrons passing through an Aharonov-Bohm ring while interacting with a tunnel charge in a double quantum dot (representing a charge qubit) which couples symmetrically to both arms of the ring.…

介观与纳米尺度物理 · 物理学 2007-10-31 Henning Schomerus , John P. Robinson

We investigate the dynamics of charge--states coherence in a degenerate double--dot Aharonov--Bohm interferometer with finite interdot Coulomb interactions. The quantum coherence of the charge states is found to be sensitive to the…

介观与纳米尺度物理 · 物理学 2018-05-09 Jinshuang Jin , Shikuan Wang , Jiahuan Zhou , Wei-Min Zhang , YiJing Yan

We study acoustic-phonon-induced relaxation of charge excitations in single and tunnel-coupled quantum dots containing few confined interacting electrons. The Full Configuration Interaction approach is used to account for the…

介观与纳米尺度物理 · 物理学 2007-10-30 Juan I. Climente , Andrea Bertoni , Massimo Rontani , Guido Goldoni , Elisa Molinari

We study coherence of electron transport through interacting quantum dots and discuss the relation of the coherent part to the flux-sensitive conductance for three different types of Aharonov-Bohm interferometers. Contributions to transport…

介观与纳米尺度物理 · 物理学 2009-10-31 Jürgen König , Yuval Gefen
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