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We study the effects of electron-electron interactions on the transport properties of a junction of three quantum wires enclosing a magnetic flux. The wires are modeled as single channel spin-1/2 Tomonaga-Luttinger liquids. The system…

介观与纳米尺度物理 · 物理学 2009-01-22 Chang-Yu Hou , Claudio Chamon

We theoretically investigate transport in a spin incoherent one dimensional electron system, which may be realized in quantum wires at low electron density and finite temperature. Both the pure and disordered cases are considered, both in…

介观与纳米尺度物理 · 物理学 2007-05-23 Gregory A. Fiete , Karyn Le Hur , Leon Balents

We (re) consider in this paper the problem of tunneling through an impurity in a quantum wire with arbitrary Luttinger interaction parameter. By combining the integrable approach developed in the case of Quantum Hall edge states with the…

强关联电子 · 物理学 2009-10-31 A. Koutouza , F. Siano , H. Saleur

We study the transport properties of interacting electrons in a disordered quantum wire within the framework of the Luttinger liquid model. We demonstrate that the notion of weak localization is applicable to the strongly correlated…

无序系统与神经网络 · 物理学 2007-05-23 I. V. Gornyi , A. D. Mirlin , D. G. Polyakov

We study electron and spin transport in interacting quantum wires contacted by noninteracting leads. We theoretically model the wire and junctions as an inhomogeneous chain where the parameters at the junction change on the scale of the…

介观与纳米尺度物理 · 物理学 2016-10-05 Denis Morath , Nicholas Sedlmayr , Jesko Sirker , Sebastian Eggert

We develop a theory of tunneling spectroscopy of interacting electrons in a non-equilibrium quantum wire coupled to reservoirs. The problem is modelled as an out-of-equilibrium Luttinger liquid with spatially dependent interaction. The…

介观与纳米尺度物理 · 物理学 2009-07-09 D. B. Gutman , Yuval Gefen , A. D. Mirlin

Quantum dots are nanoscopic systems, where carriers are confined in all three spatial directions. Such nanoscopic systems are suitable for fundamental studies of quantum mechanics and are candidates for applications such as quantum…

介观与纳米尺度物理 · 物理学 2016-03-16 Bahareh Goldozian , Fikeraddis A. Damtie , Gediminas Kiršanskas , Andreas Wacker

We study electron transport through a semiconductor quantum ring with one input and two output terminals for an elastic scatterer present within one of the arms of the ring. We demonstrate that the scatterer not only introduces asymmetry in…

介观与纳米尺度物理 · 物理学 2010-04-14 B. Szafran , M. R. Poniedzialek

One-dimensional metals, such as quantum wires or carbon nanotubes, can carry charge in arbitrary units, smaller or larger than a single electron charge. However, according to Luttinger theory, which describes the low-energy excitations of…

强关联电子 · 物理学 2025-12-31 Karyn Le Hur , Bertrand I. Halperin , Amir Yacoby

We present theoretical calculations and experimental measurements which reveal the Luttinger-liquid (LL) nature of elementary excitations in a system consisting of two quantum wires connected by a long narrow tunnel junction at the edge of…

介观与纳米尺度物理 · 物理学 2009-11-10 Yaroslav Tserkovnyak , Bertrand I. Halperin , Ophir M. Auslaender , Amir Yacoby

We study tunneling of weakly-interacting spinless electrons at zero temperature through a single delta-barrier in one-dimensional wires and rings of finite lengths. Our numerical calculations are based on the self-consistent Hartree-Fock…

介观与纳米尺度物理 · 物理学 2009-11-13 Andrej Gendiar , Martin Mosko , Pavel Vagner , Radoslav Nemeth

We consider the effect of electron-electron interaction on the electron transport through a finite length single-mode quantum wire with reflectionless contacts. The two-particle scattering events cannot alter the electric current and…

介观与纳米尺度物理 · 物理学 2009-11-13 Anders Mathias Lunde , Karsten Flensberg , Leonid I. Glazman

We study a quantum phase transition which occurs in a system composed of two impurities (or quantum dots) each coupled to a different interacting (Luttinger-liquid) lead. While the impurities are coupled electrostatically, there is no…

介观与纳米尺度物理 · 物理学 2015-06-04 Moshe Goldstein , Yuval Gefen , Richard Berkovits

We discuss the properties of interacting electrons on a finite chain with open boundary conditions. We extend the Haldane Luttinger liquid description to these systems and study how the presence of the boundaries modifies various…

凝聚态物理 · 物理学 2009-10-28 M. Fabrizio , Alexander O. Gogolin

Electron transport through a single-level quantum dot weakly coupled to Luttinger liquid leads is considered in the master equation approach. It is shown that for a weak or moderately strong interaction the differential conductance…

强关联电子 · 物理学 2013-02-06 G. A. Skorobagatko , I. V. Krive

It is shown that the conductance of a weakly disordered Luttinger-liquid quantum wire connected to non-interacting leads is affected by electron-electron interactions in the wire. This is in contrast to the case of a perfect wire the…

凝聚态物理 · 物理学 2009-10-28 Dmitrii L. Maslov

We analyze the behavior of the four-terminal resistance, relative to the two-terminal resistance of an interacting quantum wire with an impurity, taking into account the invasiveness of the voltage probes. We consider a one-dimensional…

介观与纳米尺度物理 · 物理学 2011-11-22 Hugo Aita , Liliana Arrachea , Carlos Naón

We investigate the distribution of the electron density and the potential in a quantum wire coupled to reservoirs, treating this structure as a unified quantum system and taking into account the Coulomb interaction of electrons. The…

介观与纳米尺度物理 · 物理学 2009-10-31 V. A. Sablikov , S. V. Polyakov , M. Buttiker

We develop a general out-of-equilibrium framework for a typical three-terminal setup of common use: an injector, which can be interacting, coupled by both extended tunneling and Coulomb interactions to an inhomogeneous wire with any range…

介观与纳米尺度物理 · 物理学 2009-06-15 Ines Safi

We use the technique of bosonization to understand a variety of recent experimental results on the conductivity of a quantum wire. The quantum wire is taken to be a finite-length Luttinger liquid connected on two sides to semi-infinite…

强关联电子 · 物理学 2009-11-07 Siddhartha Lal , Sumathi Rao , Diptiman Sen
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