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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 study theoretically the transmission through a quantum dot molecule embedded in the arms of an Aharonov-Bohm four quantum dot ring threaded by a magnetic flux. The tunable molecular coupling provides a transmission pathway between the…

介观与纳米尺度物理 · 物理学 2013-05-28 Daniel A. Lovey , Sergio S. Gomez , Rodolfo H. Romero

We present a statistical readout method for quantum interferences based on time series analysis of consecutive single electron transfers through a double quantum dot Aharonov-Bohm interferometer. Waiting time distributions qualitatively…

介观与纳米尺度物理 · 物理学 2009-11-13 Sven Welack , Shaul Mukamel , YiJing Yan

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

Measurement of the transmission phase through a quantum dot (QD) embedded in an arm of a two-terminal Aharonov-Bohm (AB) interferometer is inhibited by phase symmetry, i.e. the property that the linear response conductance of a two-terminal…

介观与纳米尺度物理 · 物理学 2015-05-18 Vadim Puller , Yigal Meir

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

We show that techniques of spatial adiabatic passage can be used to realise an electron interferometer in a geometry analogous to a conventional Aharonov-Bohm ring, with transport of the particle through the device modulated using coherent…

量子物理 · 物理学 2013-05-29 Lenneke M Jong , Andrew D. Greentree

We address the question of how to model electron transport through closed Aharonov-Bohm interferometers which contain quantum dots. By explicitly studying interferometers with one and two quantum dots, we establish the connection between a…

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

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

Thermoelectric effects are studied in an Aharonov-Bohm (AB) interferometer with an embedded quantum dot in the Kondo regime. The AB flux-dependent transmission probability has an asymmetrical shape arising from the Fano interference between…

凝聚态物理 · 物理学 2009-11-07 Tae-Suk Kim , S. Hershfield

By considering a nanoscale Aharonov-Bohm (AB) interferometer containing a parrallel-coupled double dot coupled to the source and drain electrodes, we investigate the AB phase oscillations of transport current via the bonding and antibonding…

介观与纳米尺度物理 · 物理学 2016-07-13 Jian-Heng Liu , Matisse Wei-Yuan Tu , Wei-Min Zhang

We address the quantum dot phase measurement problem in an open Aharonov-Bohm interferometer, assuming multiple transport channels. In such a case, the quantum dot is characterized by more than one intrinsic phase for the electrons…

介观与纳米尺度物理 · 物理学 2015-05-18 M. Ţolea , M. Niţă , A. Aldea

We study the Coulomb interaction-induced Aharonov-Bohm (AB) oscillations in the linear response transport through a remote quantum dot which has no tunnel coupling but has Coulomb coupling with the quantum dot embedded in an AB…

介观与纳米尺度物理 · 物理学 2015-08-04 Toshihiro Kubo , Yasuhiro Tokura

We study a multi-functional device for cold atoms consisting of a three-terminal ring circuit pierced by a synthetic magnetic flux, where the ring can be continuous or discretized. The flux controls the atomic current through the ring via…

Recent experiments involving semiconducting quantum dots embedded in Aharonov-Bohm interferometry setups suggest that information concerning the phase of electron wavefunctions can be obtained from transport measurements. Here we review the…

介观与纳米尺度物理 · 物理学 2007-05-23 Yuval Gefen

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

An Aharonov-Bohm interferometer (ABI) carrying a quantum dot on one of its arms is analyzed. It is found that the Kondo temperature of the device depends strongly on the magnetic flux penetrating the ring. As a result, mesoscopic…

介观与纳米尺度物理 · 物理学 2009-11-11 Pascal Simon , Ora Entin-Wohlman , Amnon Aharony

We study coherent charge tunneling through a one-dimensional interacting ring with a one-dimensional quantum dot embedded in one of its arms through bosonisation. The symmetries of the effective action explain many of the features such as…

介观与纳米尺度物理 · 物理学 2007-05-23 P. Durganandini , Sumathi Rao

Inverted-band $pn$ junctions in two-dimensional materials offer a promising platform for electron optics in condensed matter, as they allow to manipulate and guide electron beams without the need for spatial confinement. In this work, we…

介观与纳米尺度物理 · 物理学 2024-10-30 Yuhao Zhao , Oded Zilberberg , Antonio Štrkalj

We study quantum Hall interferometers in which the interference loop encircles a quantum anti-dot. We base our study on thermodynamic considerations, which we believe reflect the essential aspects of interference transport phenomena. We…

介观与纳米尺度物理 · 物理学 2015-10-20 Sarah Levy Schreier , Ady Stern , Bernd Rosenow , Bertrand. I. Halperin
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