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Related papers: Fano Resonance in a Quantum Wire with a Side-coupl…

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As the Fano effect is an interference phenomenon where tunneling paths compete for the electronic transport, it becomes a probe to catch fingerprints of Majorana fermions lying on condensed matter systems. In this work we benefit of this…

Mesoscale and Nanoscale Physics · Physics 2014-11-11 F. A. Dessotti , L. S. Ricco , M. de Souza , F. M. Souza , A. C. Seridonio

We study the ballistic magnetotransport in a double quantum point contact (QPC) device consisting of a quasi-one-dimensional quantum wire with an embedded island-like impurity - etched nano-hole as in a recently published experiment [J. C.…

Mesoscale and Nanoscale Physics · Physics 2011-05-05 Rubén C. Villarreal , Francisco Mireles , Ernesto E. Marinero , Bruce A. Gurney

We investigate the effect of decoherence on Fano resonances in wave transmission through resonant scattering structures. We show that the Fano asymmetry parameter q follows, as a function of the strength of decoherence, trajectories in the…

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…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Akiko Ueda , Ikuo Baba , Keita Suzuki , Mikio Eto

We study the zero-bias conductance through the system of two quantum dots, one of which is embedded directly between the source and drain electrodes, while the second dot is side-coupled to the first one through a tunneling junction.…

Mesoscale and Nanoscale Physics · Physics 2010-08-10 Rok Zitko

Fano resonance is believed to arise when a direct path interferes with a resonant path. We demonstrate that this is not true for chiral electronic transmission without additional direct paths. To address the Fano effect in chiral electronic…

Mesoscale and Nanoscale Physics · Physics 2024-11-12 Ai-Ying Ye , Zhao Yang Zeng

We have studied the Fano resonance in photon-assisted transport in a quantum dot and calculated both the coherent current and spectral density of shot noise. It is predicted, for the first time, that the shape of Fano profile will also…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Zhongshui Ma , Yu Zhu , Xin-Qi Li , Tsung-han Lin , Zhao-Bin Su

The electron transport through a quantum sphere with three one-dimensional wires attached to it is investigated. An explicit form for the transmission coefficient as a function of the electron energy is found from the first principles. The…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 V. A. Margulis , M. A. Pyataev

We theoretically study Fano resonance in a two-level quantum dot side-coupled to two leads, which are connected by a direct channel. The resonance lineshape is found to be deformed, from the conventional Fano form, by interlevel Coulomb…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 W. -R. Lee , Jaeuk U. Kim , H. -S. Sim

We investigate a tunable Fano interferometer consisting of a quantum dot coupled via tunneling to a one-dimensional channel. In addition to Fano resonance, the channel shows strong Coulomb response to the dot, with a single electron…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. C. Johnson , C. M. Marcus , M. P. Hanson , A. C. Gossard

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…

Mesoscale and Nanoscale Physics · Physics 2018-02-07 Pei-Yun Yang , Wei-Min Zhang

An interacting quantum dot side-coupled to a perfect quantum wire is studied. Transport through the quantum wire is investigated by using an exact sum rule and the slave-boson mean field treatment. It is shown that the Kondo effect provides…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Kicheon Kang , Sam Young Cho , Ju-Jin Kim , Sung-Chul Shin

Electron transport through parallel double quantum dot system with interdot tunneling and strong on-site Coulomb interaction is studied in the Kondo regime by using the finite-$U$ slave boson technique. For a system of quantum dots with…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Guo-Hui Ding , C. K. Kim , K. Nahm

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…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Bogdan R. Bulka , Piotr Stefanski

We investigate low-temperature transport characteristics of a side-coupled double quantum dot where only one of the dots is directly connected to the leads. We observe Fano resonances, which arise from interference between discrete levels…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 S. Sasaki , H. Tamura , T. Akazaki , T. Fujisawa

Detecting the transmission phase of a quantum dot via interferometry can reveal the symmetry of the orbitals and details of electron transport. Crucially, interferometry will enable the read-out of topological qubits based on…

Transient electron dynamics and the Fano resonance formation over time in transport through a two quantum dot system in a T-shape geometry (2QD-T) are analysed for free electrons. Time evolution of the transport characteristics are…

Mesoscale and Nanoscale Physics · Physics 2021-11-01 Grzegorz Michałek , Bogdan R. Bułka

We investigate the Fano-type spectroscopic lineshapes of the T-shape double quantum dot coupled between the conducting and superconducting electrodes and analyze their stability on a decoherence. Because of the proximity effect the quantum…

Mesoscale and Nanoscale Physics · Physics 2012-06-01 J. Baranski , T. Domanski

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…

Strongly Correlated Electrons · Physics 2013-06-10 Tie-Feng Fang , Hong-Gang Luo

Electron transport through a spin-orbit-coupled quantum ring is investigated within linear response theory. We show that the finite width of the ring results in the appearance of Fano resonances in the conductance. This turns out to be a…

Mesoscale and Nanoscale Physics · Physics 2011-12-30 M. P. Nowak , B. Szafran , F. M. Peeters