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We investigate the thermoelectric properties of a T-shaped double quantum dot system described by a generalized Anderson Hamiltonian. The system's electrical conduction (G) and the fundamental thermoelectric parameters such as the Seebeck…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 A. L. Monteros , G. S. Uppal , S. R. McMillan , M. Crisan , I. Tifrea

In this paper, we investigate the electronic transport properties of a quantum dot (QD) connected to two ferromagnetic leads and one superconductor lead in the Kondo regime by means of the finite-$U$ slave boson mean field approach and…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 C. Lee , Bing Dong , X. L. Lei

We investigate theoretically the Andreev transport through a quantum dot strongly coupled with a normal metal/ferromagnet and a superconductor (N/F-QD-S), in which the interplay between the Kondo resonance and the Andreev bound states…

Strongly Correlated Electrons · Physics 2015-12-09 Lin Li , Zhan Cao , Hong-Gang Luo , Fu-Chun Zhang , Wei-Qiang Chen

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…

Strongly Correlated Electrons · Physics 2009-11-10 Anatoly Golub , Yshai Avishai

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 investigate a non-Hermitian Aharonov-Bohm (AB) ring system with a quantum dot (QD) embedded in each of its two arms. The energy levels of the QDs are complex in order to take into account the physical gain or loss of the ring system…

Quantum Physics · Physics 2017-02-14 Qi-Bo Zeng , Shu Chen , Rong Lü

We investigate the electron transport through a mesoscopic ring side-coupled with a quantum dot(QD) in the presence of Rashba spin-orbit(SO) interaction. It is shown that both the Fano resonance and the spin interference effects play…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Guo-Hui Ding , Bing Dong

We explore the electron dynamics of a system composed of double quantum dot embedded between metallic and superconducting leads in a T-shape geometry. In nanoscopic systems, where electron transfer between electrodes can be realized via…

Mesoscale and Nanoscale Physics · Physics 2023-07-25 Jan Baranski , Magdalena Baranska , Tomasz Zienkiewicz , Konrad J. Kapcia

We theoretically examine the transport through an Aharonov-Bohm ring with an embedded quantum dot (QD), the so-called QD interferometer, to address two controversial issues regarding the shape of the Coulomb peaks and measurement of the…

Mesoscale and Nanoscale Physics · Physics 2020-12-04 Mikio Eto , Rui Sakano

In this minireview, we outline the recent experimental and theoretical progress in the creation, characterization and manipulation of Majorana bound states (MBSs) in semiconductor-superconductor (SC) hybrid structures. After an introductory…

Mesoscale and Nanoscale Physics · Physics 2020-07-10 Alexander Schuray , Daniel Frombach , Sunghun Park , Patrik Recher

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

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

We investigate the nonequilibrium transport properties of a double quantum dot system connected in parallel to two leads, including intradot electron-electron interaction. In the absence of interactions the system supports a bound state in…

Mesoscale and Nanoscale Physics · Physics 2016-07-04 Miguel A. Sierra , M. Saiz-Bretin , F. Dominguez-Adame , David Sanchez

We study the interaction between a topological insulator nanoparticle and a quantum dot subject to an applied electric field. The electromagnetic response of the topological insulator is derived from axion electrodynamics in the quasistatic…

Quantum Physics · Physics 2020-08-26 L. A. Castro-Enriquez , L. F. Quezada , A. Martín-Ruiz

We explore the signatures of Majorana fermions in a nanowire based topological superconductor-quantum dot-topological superconductor hybrid device by charge transport measurements. The device is made from an epitaxially grown InSb nanowire…

Superconductivity · Physics 2014-12-02 M. T. Deng , C. L. Yu , G. Y. Huang , M. Larsson , P. Caroff , H. Q. Xu

We present a unified theory of quantum phase transitions for half-filled quantum dots (QDs) coupled to gapped host bands. We augment the bands by additional weakly coupled metallic lead which allows us to analyze the system by using…

Mesoscale and Nanoscale Physics · Physics 2025-07-24 Peter Zalom , Martin Žonda

We investigate the spin-dependent transport properties of quantum-dot based structures where Kondo correlations dominate the electronic dynamics. The coupling to ferromagnetic leads with parallel magnetizations is known to give rise to…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 David Sanchez , Rosa Lopez , Mahn-Soo Choi

A highly tunable linear triple quantum dot (TQD) device is realized in a single-crystalline pure-phase InAs nanowire using a local finger gate technique. The electrical measurements show that the charge stability diagram of the TQD can be…

Mesoscale and Nanoscale Physics · Physics 2018-01-29 Ji-Yin Wang , Shaoyun Huang , Guang-Yao Huang , Dong Pan , Jianhua Zhao , H. Q. Xu

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…

Mesoscale and Nanoscale Physics · Physics 2018-01-09 J. P. Ramos-Andrade , P. A. Orellana , S. E. Ulloa

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