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相关论文: Intersubband Electron Interaction in 1D-2D Junctio…

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We review field theoretical studies dedicated to understanding the effects of electron-electron interaction in graphene, which is characterized by gapless bands, strong electron-electron interactions, and emerging Lorentz invariance deep in…

高能物理 - 理论 · 物理学 2023-05-30 A. V. Kotikov

We perform self-consistent quantum transport calculations in open quantum dots taking into account the effect of electron interaction. We demonstrative that in the regime of the ultralow temperatures $2\pi k_BT\lesssim\Delta$ ($\Delta $…

介观与纳米尺度物理 · 物理学 2009-11-13 S. Ihnatsenka , I. V. Zozoulenko

We study systems with local vibrating potentials, one-dimensional single and double wells and the tight-binding 1D model with single vibrating site. In general, these systems transmit, or reflect particles inelastically, with absorption or…

介观与纳米尺度物理 · 物理学 2009-11-13 M. M. Mahmoodian , M. V. Entin , L. S. Braginsky

Spatially separated electron systems remain strongly coupled by electron-electron interactions even when they cannot exchange particles, provided that the layer separation d is comparable to a characteristic distance l between charge…

Coherent quantum transport in ferromagnet/superconductor/ferromagnet (FSF) double-barrier junctions is studied. Analytic expressions for charge and spin conductance spectra are derived for the general case of insulating interfaces (from…

超导电性 · 物理学 2009-11-11 Milos Bozovic , Zoran Radovic

The Peierls distortions in a two-dimensional electron-lattice system described by a Su-Schrieffer-Heeger type model extended to two-dimensions are numerically studied for a square lattice. The electronic band is just half-filled and the…

材料科学 · 物理学 2015-06-24 Yoshiyuki Ono , Tetsuya Hamano

Plasmons in two-dimensional electron systems with nonparabolic bands, such as graphene, feature strong dependence on electron-electron interactions. We use a many-body approach to relate plasmon dispersion at long wavelengths to Landau…

介观与纳米尺度物理 · 物理学 2013-12-19 L. S. Levitov , A. V. Shtyk , M. V. Feigelman

We show that the low-density strongly interacting electron liquid, interacting via the long-range Coulomb interaction, could develop a dispersion instability at a critical density associated with the approximate flattening of the…

强关联电子 · 物理学 2007-05-23 Ying Zhang , V. M. Yakovenko , S. Das Sarma

Electron and phonon correlations in systems of one-dimensional electrons coupled to phonons are studied at low temperatures by emphasizing on the effect of electron-phonon backward scattering. It is found that the $2k_F$-wave components of…

强关联电子 · 物理学 2009-11-13 Leiming Chen

We develop a theory of magneto-oscillations in photoconductivity of multisubband two-dimensional electron systems which takes into account strong Coulomb interaction between electrons. In the presence of a magnetic field oriented…

介观与纳米尺度物理 · 物理学 2012-07-25 Yuriy P. Monarkha

This paper is devoted to the investigation of electron sound -- oscillations of the electron distribution function coupled with elastic deformation and propagating with the Fermi velocity. The amplitude-phase relations characterizing the…

其他凝聚态物理 · 物理学 2014-02-10 Yu. A. Avramenko , E. V. Bezuglyi , N. G. Burma , V. D. Fil'

We analyze quantum interference and decoherence effects in single-molecule junctions both experimentally and theoretically by means of the mechanically controlled break junction technique and density-functional theory. We consider the case…

介观与纳米尺度物理 · 物理学 2012-09-26 Stefan Ballmann , Rainer Härtle , Pedro B. Coto , Marcel Mayor , Mark Elbing , Martin R. Bryce , Michael Thoss , Heiko B. Weber

The electron-electron scattering rate of single particle excitations in atoms is estimated and compared with the corresponding rate in quantum dots. It is found that in alkali atoms single particle excitations do not acquire a width due to…

凝聚态物理 · 物理学 2009-10-31 Kinneret Keren , Ady Stern , Uri Sivan

We analyze the properties of flat-band superconductor junctions that behave differently from ordinary junctions containing only metals with Fermi surfaces. In particular, we show how in the tunneling limit the critical Josephson current…

We theoretically study a charge qubit interacting with electrons in a semi-infinite 1D wire. The system displays the physics of the Fermi edge singularity. Our results generalize known results for the Fermi-edge system to the regime where…

强关联电子 · 物理学 2013-02-25 A. Sheikhan , I. Snyman

In a quasi two-dimensional electron system with non-zero layer thickness, a parallel magnetic field (B||) can couple to the out-of-plane electron motion and lead to a severe distortion and eventual disintegration of the Fermi contour. Here…

介观与纳米尺度物理 · 物理学 2015-06-12 M. A. Mueed , D. Kamburov , M. Shayegan , L. N. Pfeiffer , K. W. West , K. W. Baldwin , R. Winkler

Effect of a complicated many-body environment is analyzed on the electron random scattering by a 2D mesoscopic open ballistic structure. A new mechanism of decoherence is proposed. The temperature of the environment is supposed to be zero…

介观与纳米尺度物理 · 物理学 2015-03-13 Valentin V. Sokolov

We use the renormalization group method to examine the effect of phonon mediated interaction on d-wave superconductivity, as driven by spin fluctuations in a quasi-one-dimensional electron system. The influence of a tight-binding…

强关联电子 · 物理学 2014-09-15 Hassan Bakrim , Claude Bourbonnais

A pioneering experiment [E. Schuster, E. Buks, M. Heiblum, D. Mahalu, V. Umansky, and Hadas Shtrikman, Nature 385, 417 (1997)] reported the measurement of the transmission phase of an electron traversing a quantum dot and found the…

介观与纳米尺度物理 · 物理学 2007-05-23 Sejoong Kim , Hyun-Woo Lee

We calculate the energy band structure for electrons in an external periodic potential combined with a perpendicular magnetic field. Electron-electron interactions are included within a Hartree approximation. The calculated energy spectra…

介观与纳米尺度物理 · 物理学 2007-05-23 Egidijus Anisimovas , Peter Johansson
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