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相关论文: Charging effects in quantum wires

200 篇论文

Coulomb drag between two quantum wires is exponentially sensitive to the mismatch of their electronic densities. The application of a magnetic field can compensate this mismatch for electrons of opposite spin directions in different wires.…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Pustilnik , E. G. Mishchenko , O. A. Starykh

The Coulomb interaction effect and the surface effect are consistently taken into account in the hadron-quark mixed phase. These two finite-size effects greatly change the properties of the mixed phase and restrict its density region. In…

高能物理 - 唯象学 · 物理学 2009-11-11 Tomoki Endo , Toshiki Maruyama , Satoshi Chiba , Toshitaka Tatsumi

We study single-electron charging events in an Al/InAs nanowire hybrid system with deliberately introduced gapless regions. The occupancy of a Coulomb island is detected using a nearby radio-frequency quantum dot as a charge sensor. We…

We present a theory of negative Coulomb drag in capacitively coupled quantum wires based on the commensurability of the electron density and the long-range nature of the Coulomb interaction in the Tomonaga-Luttinger liquid. The…

强关联电子 · 物理学 2015-03-10 Shunsuke C. Furuya , Hiroyasu Matsuura , Masao Ogata

The temperature dependence of Coulomb blockade peaks of a one dimensional quantum dot is calculated. The Coulomb interaction is treated microscopically using the Luttinger liquid model. The electron interaction is assumed to be…

介观与纳米尺度物理 · 物理学 2017-08-23 T. Kleimann , M. Sassetti , B. Kramer

Negatively and positively charged excitons are identified in the spatially-resolved photoluminescence spectra of quantum wires. We demonstrate that charged excitons are weakly localized in disordered quantum wires. As a consequence, the…

材料科学 · 物理学 2007-05-23 T. Otterburg , D. Y. Oberli , M. -A. Dupertuis , N. Moret , E. Pelucchi , B. Dwir , K. Leifer , E. Kapon

The nonlinear conductance of a one-dimensional quantum wire adiabatically coupled to Fermi Liquid electron reservoirs is determined in presence of an impurity. We show that electron-electron interaction in connection with the finite length…

强关联电子 · 物理学 2007-05-23 Fabrizio Dolcini , Hermann Grabert , Ines Safi , Bjoern Trauzettel

We investigate the transport properties of a quantum wire of weakly interacting fermions in the presence of local particle loss. We calculate current and conductance in this system due to applied external chemical potential bias that can be…

The angular momentum or vorticity of Cooper pairs is shown to affect strongly the charge transfer through a small superconducting (S) island of a single electron transistor. This interplay of charge and rotational degrees of freedom in a…

超导电性 · 物理学 2015-07-27 I. M. Khaymovich , V. F. Maisi , J. P. Pekola , A. S. Mel'nikov

We outline the qualitatively different physics behind charging-induced current asymmetries in molecular conductors operating in the weakly interacting self-consistent field (SCF) and the strongly interacting Coulomb Blockade (CB) regimes. A…

介观与纳米尺度物理 · 物理学 2009-11-13 O. D. Miller , B. Muralidharan , N. Kapur , A. W. Ghosh

We develop a theory of Coulomb oscillations in superconducting devices in the limit of small charging energy $E_C \ll \Delta$. We consider a small superconducting grain of finite capacity connected to two superconducting leads by nearly…

凝聚态物理 · 物理学 2009-10-30 D. A. Ivanov , M. V. Feigel'man

We consider an interacting quantum dot working as a coherent source of single electrons. The dot is tunnel coupled to a reservoir and capacitively coupled to a gate terminal with an applied ac potential. At low frequencies, this is the…

介观与纳米尺度物理 · 物理学 2016-10-24 M. I. Alomar , Jong Soo Lim , David Sánchez

We study the fractional quantum Hall effect in a bilayer with charge-distribution imbalance induced, for instance, by a bias gate voltage. The bilayer can either be intrinsic or it can be formed spontaneously in wide quantum wells, due to…

强关联电子 · 物理学 2013-10-01 N. Thiebaut , N. Regnault , M. O. Goerbig

We use a generalized master equation (GME) to describe the nonequilibrium magnetotransport of interacting electrons through a broad finite quantum wire with an embedded ring structure. The finite quantum wire is weakly coupled to two broad…

介观与纳米尺度物理 · 物理学 2012-03-15 Vidar Gudmundsson , Chi-Shung Tang , Olafur Jonasson , Valeriu Moldoveanu , Andrei Manolescu

We study tunneling of electrons into and between interacting wires in the spin-incoherent regime subject to a magnetic field. The tunneling currents follow power laws of the applied voltage with exponents that depend on whether the electron…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Kindermann , P. W. Brouwer

We develop a method of theoretically investigating the charge, energy and heat transport in the presence of the charge Kondo correlations. The Coulomb blockade oscillations of heat conductance in the single electron transistor exhibiting…

介观与纳米尺度物理 · 物理学 2021-01-01 D. B. Karki

In this article, we combine the modified electrostatics of a one-dimensional transistor structure with a quantum kinetic formulation of Coulomb interaction and nonequilibrium transport. A multi-configurational self-consistent Green's…

其他凝聚态物理 · 物理学 2007-05-23 K. M. Indlekofer , J. Knoch , J. Appenzeller

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

In a recent article, we have advanced a semiclassical theory of quantum circuits with discrete charge and electrical resistance. In this work, we present a few elementary applications of this theory. For the zero resistance, inductive…

介观与纳米尺度物理 · 物理学 2009-11-13 Constantino A. Utreras-Diaz

We investigate the effect of electron-electron interactions on the transport properties of disordered quasi one-dimensional quantum wires with two or more subbands occupied. We apply two alternative methods to solve the logarithmic…

介观与纳米尺度物理 · 物理学 2009-10-28 Arisato Kawabata , Tobias Brandes