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相关论文: Mesoscopic Coulomb Blockade in One-channel Quantum…

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We study coherent oscillations in double quantum dots tunnel-coupled to metallic leads by means of full counting statistics of electron transport. If two such systems are coupled by Coulomb interaction, there are in total six (instead of…

介观与纳米尺度物理 · 物理学 2021-10-19 Eric Kleinherbers , Philipp Stegmann , Jürgen König

Microwave band on-chip microcoils are developed for the application to single electron spin resonance measurement with a single quantum dot. Basic properties such as characteristic impedance and electromagnetic field distribution are…

介观与纳米尺度物理 · 物理学 2007-10-24 Toshiaki Obata , Michel Pioro-Ladriere , Toshihiro Kubo , Katsuharu Yoshida , Yasuhiro Tokura , Seigo Tarucha

We present measurements of tunneling magneto-resistance (TMR) in single-wall carbon nanotubes attached to ferromagnetic contacts in the Coulomb blockade regime. Strong variations of the TMR with gate voltage over a range of four conductance…

介观与纳米尺度物理 · 物理学 2015-05-27 Alois Dirnaichner , Milena Grifoni , Andreas Prüfling , Daniel Steininger , Andreas K. Hüttel , Christoph Strunk

We propose a magnetic dual of the Coulomb blockade effect for quantum nucleation of flux vortex pairs in high-Tc superconducting (HTS) films and grain boundaries in zero applied field. The magnetic blockade instability occurs at {\theta} =…

超导电性 · 物理学 2012-02-08 J. H. Miller , A. I. Wijesinghe

Gate-tunable quantum-mechanical tunnelling of particles between a quantum confined state and a nearby Fermi reservoir of delocalized states has underpinned many advances in spintronics and solid-state quantum optics. The prototypical…

We study the Coulomb interaction-induced Aharonov-Bohm (AB) oscillations in the linear response transport through a remote quantum dot which has no tunnel coupling but has Coulomb coupling with the quantum dot embedded in an AB…

介观与纳米尺度物理 · 物理学 2015-08-04 Toshihiro Kubo , Yasuhiro Tokura

Systems of quantum dots (QD) connected to leads exhibit periodic conductance peaks as a function of gate voltage arising from the Coulomb blockade effect \cite{review1,review2,review3}. Much effort goes into minimizing the size of QDs and…

介观与纳米尺度物理 · 物理学 2009-07-29 L. Bitton , R. Berkovits , A. Frydman

We investigate cross-correlations in the tunneling currents through two parallel quantum dots coupled to independent electrodes and gates and interacting via an inter-dot Coulomb interaction. The correlations reveal additional information,…

介观与纳米尺度物理 · 物理学 2008-02-26 Sebastian Haupt , Jasmin Aghassi , Matthias H. Hettler , Gerd Sch"on

We propose the autocorrelator of conductance peak heights as a signature of the underlying chaotic dynamics in quantum dots in the Coulomb blockade regime. This correlation function is directly accessible to experiments and its decay width…

凝聚态物理 · 物理学 2009-10-28 Henrik Bruus , Caio H. Lewenkopf , Eduardo R. Mucciolo

Charge and spin density waves are highly correlated electron systems that can transport an electric current. A model is discussed in which a field E induces the creation, by quantum tunneling, of pairs of oppositely charged solitons and…

超导电性 · 物理学 2012-08-27 John H Miller,

We investigate the transport properties of quantum dots placed in strong magnetic field using a quantum-mechanical ' approach based on the 2D tight-binding Hamiltonian with direct Coulomb interaction and the Landauer-B\"{u}ttiker (LB)…

介观与纳米尺度物理 · 物理学 2009-10-31 V. Moldoveanu , A. Aldea , A. Manolescu , M. Nita

We calculate the nonlinear cotunneling conductance through interacting quantum dot systems in the deep Coulomb blockade regime using a rate equation approach based on the T-matrix formalism, which shows in the concerned regions very good…

介观与纳米尺度物理 · 物理学 2011-06-03 Georg Begemann , Sonja Koller , Milena Grifoni , Jens Paaske

In Coulomb drag, a current flowing in one conductor can induce a voltage across an adjacent conductor via the Coulomb interaction. The mechanisms yielding drag effects are not always understood, even though drag effects are sufficiently…

介观与纳米尺度物理 · 物理学 2016-08-16 A. J. Keller , J. S. Lim , David Sánchez , Rosa López , S. Amasha , J. A. Katine , Hadas Shtrikman , D. Goldhaber-Gordon

Kondo correlations are responsible for the emergence of a zero-bias peak in the low temperature differential conductance of Coulomb blockaded quantum dots. In the presence of a global SU(2)$\otimes$SU(2) symmetry, which can be realized in…

Carbon nanotubes provide a new class of molecular wires that display new and exciting mesoscopic transport properties. We provide a detailed theoretical description for transport in multi-wall nanotubes, where both disorder and strong…

强关联电子 · 物理学 2009-11-07 R. Egger , A. O. Gogolin

We predict a new zero-bias anomaly in the differential conductance through a quantum dot coupled to two ferromagnetic leads with antiparallel magnetization. The anomaly differs in origin and properties from other anomalies in transport…

介观与纳米尺度物理 · 物理学 2009-11-10 Ireneusz Weymann , Józef Barnaś , Jürgen König , Jan Martinek , Gerd Schön

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

This thesis describes the merging of the two fields of Coulomb drag and mesoscopic physics. The thesis presents a theory for Coulomb drag between two mesoscopic systems based on linear-response theory. The formalism expresses the drag in…

介观与纳米尺度物理 · 物理学 2007-05-23 Niels Asger Mortensen

In order to illustrate the emergence of Coulomb blockade from coherent quantum phase-slip processes in thin superconducting wires, we propose and theoretically investigate two elementary setups, or "devices". The setups are derived from…

介观与纳米尺度物理 · 物理学 2015-03-17 A. M. Hriscu , Yu. V. Nazarov

Coulomb blockaded transport of topological superconducting nanowires provides an opportunity to probe the localization of states at both ends of the system in a two-terminal geometry. In addition, it provides a way for checking for subgap…

介观与纳米尺度物理 · 物理学 2021-08-05 Yi-Hua Lai , Sankar Das Sarma , Jay D. Sau