中文
相关论文

相关论文: Tunable Molecular Resonances of Double Quantum Dot…

200 篇论文

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

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

The Fano resonance in quantum dots embedded in Aharonov-Bohm rings is examined theoretically, using two models of non-interacting electrons. The first model yields an analytical expression for the conductance G. G is written in an extended…

介观与纳米尺度物理 · 物理学 2015-06-24 Akiko Ueda , Ikuo Baba , Keita Suzuki , Mikio Eto

In this paper, we investigate transient quantum transport in a nanoscale Aharonov-Bohm (AB) interferometer consisting of a laterally coupled double quantum dot (DQD) coupled to the source and drain electrodes. The transient linear…

介观与纳米尺度物理 · 物理学 2018-02-07 Pei-Yun Yang , Wei-Min Zhang

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

Coherent resonant tunneling through an artificial molecule of quantum dots in an inhomogeneous magnetic field is investigated using an extended Hubbard model. Both the multiterminal conductance of an array of quantum dots and the persistent…

介观与纳米尺度物理 · 物理学 2007-05-23 C. A. Stafford , R. Kotlyar , S. Das Sarma

Tunneling conductance of an Aharonov-Bohm circuit including two quantum dots is calculated based on the general expression of the conductance in the linear response regime of the bias voltage. The calculation is performed in a wide…

介观与纳米尺度物理 · 物理学 2009-10-30 Wataru Izumida , Osamu Sakai , Yukihiro Shimizu

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 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 investigate the conductance of an Aharonov-Bohm (AB) interferometer coupled to a quantum dot and two Majorana bound states on the edge of the topological superconductor with finite length. When the tunnel couplings between the Majorana…

介观与纳米尺度物理 · 物理学 2014-08-27 Akiko Ueda , Takehito Yokoyama

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

Recent experiments [M. Yamamoto et al., Nature Nanotechnology 7, 247 (2012)] used the transport of electrons through an Aharonov-Bohm interferometer and two coupled channels (at both ends of the interferometer) to demonstrate a manipulable…

介观与纳米尺度物理 · 物理学 2015-06-18 A. Aharony , S. Takada , O. Entin-Wohlman , M. Yamamoto , S. Tarucha

The electronic transport through a triple quantum dot molecule attached in parallel to leads in presence of a magnetic flux is studied. Analytical expressions of the linear conductance and density of states for the molecule in equilibrium…

介观与纳米尺度物理 · 物理学 2009-11-11 M. L. Ladrón de Guevara , P. A. Orellana

We study the Fano-Kondo effect in a closed Aharonov-Bohm (AB) interferometer which contains a single-level quantum dot and predict a frequency doubling of the AB oscillations as a signature of Kondo-correlated states. Using Keldysh…

介观与纳米尺度物理 · 物理学 2009-11-07 Walter Hofstetter , Jürgen König , Herbert Schoeller

We study the transport properties of an interferometer composed by a quantum dot (QD) coupled with two normal leads and two one-dimensional topological superconductor nanowires (TNWs) hosting Majorana bound states (MBS) at their ends. The…

介观与纳米尺度物理 · 物理学 2018-01-09 J. P. Ramos-Andrade , P. A. Orellana , S. E. Ulloa

Aharonov-Bohm (AB) oscillations are studied for a parallel coupled vertical double quantum dot with a common source and drain electrode. We observe AB oscillations of current via a one-electron bonding state as the ground state and an…

介观与纳米尺度物理 · 物理学 2011-02-18 T. Hatano , T. Kubo , Y. Tokura , S. Amaha , S. Teraoka , S. Tarucha

We derive the quantum rate equations for an Aharonov-Bohm interferometer with two vertically coupled quantum dots embedded in each of two arms by means of the nonequilibrium Green's function in the sequential tunneling regime. Basing on…

介观与纳米尺度物理 · 物理学 2009-11-10 Bing Dong , Ivana Djuric , H. L. Cui , X. L. Lei

We study electronic transport through an Aharonov-Bohm interferometer with single-level quantum dots embedded in the two arms. The full counting statistics in the shot-noise regime is calculated to first order in the tunnel-coupling…

介观与纳米尺度物理 · 物理学 2009-04-28 Daniel Urban , Jürgen König

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

Electronic transport through a quantum dot strongly coupled to electrodes is studied within a model with two conduction channels. It is shown that multiple scattering and interference of transmitted waves through both channels lead to Fano…

介观与纳米尺度物理 · 物理学 2009-11-07 Bogdan R. Bulka , Piotr Stefanski
‹ 上一页 1 2 3 10 下一页 ›