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相关论文: Electron-electron interactions and two-dimensional…

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We consider the correction to conductivity of a 2D electron gas due to electron-electron interaction in the parallel magnetic field at arbitrary relation between temperature and the elastic mean free time. The correction exhibits…

无序系统与神经网络 · 物理学 2009-11-07 Gabor Zala , B. N. Narozhny , I. L. Aleiner

The cross section of elastic electron-proton scattering taking place in an electron gas is calculated within the Closed Time Path method. It is found to be the sum of two terms, one being the expression in the vacuum except that it involves…

高能物理 - 理论 · 物理学 2013-05-30 Janos Polonyi , Karima Zazoua

Electrical energy is considered as a fundamental parameter for inclusion in Fermi gas theory, in addition to thermal energy. It is argued that electrical energy can move some electrons to above the Fermi Level, providing free charges to…

材料科学 · 物理学 2022-06-15 C. A. M. dos Santos , M. S. da Luz , F. S. Oliveira , L. M. S Alves

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 calculate, within the leading-order dynamical-screening approximation, the electron self-energy and spectral function at zero temperature for extrinsic (or gated/doped) graphene. We also calculate hot carrier inelastic scattering due to…

介观与纳米尺度物理 · 物理学 2008-05-12 E. H. Hwang , Ben Yu-Kuang Hu , S. Das Sarma

The hydrodynamic regime of electron transport has been recently realized in conductors with ultra-low densities of defects. Although relaxation processes in two-dimensional (2D) fluids have been studied in many theoretical works, the…

介观与纳米尺度物理 · 物理学 2021-01-04 P. S. Alekseev , A. P. Dmitriev

We study the temperature evolution of the non-linear oscillatory magnetoresistance in a high-mobility two-dimensional electron system subject to a strong dc electric field. We find that the decay of the oscillation amplitude with increasing…

介观与纳米尺度物理 · 物理学 2009-04-29 A. T. Hatke , M. A. Zudov , L. N. Pfeiffer , K. W. West

We describe a method for numerically incorporating electron--electron scattering in quantum wells for small deviations of the distribution function from equilibrium, within the framework of the Boltzmann equation. For a given temperature…

凝聚态物理 · 物理学 2009-10-28 Ben Yu-Kuang Hu , Karsten Flensberg

We have shown that the electron transport through junctions of one-dimensional and two-dimensional systems, as well as through quantum point contacts, is considerably affected by the interaction of electrons of different subbands. The…

介观与纳米尺度物理 · 物理学 2009-11-11 V. A. Sablikov

We study the effect of electron-electron interaction on the surface resistivity of three-dimensional (3D) topological insulators. In the absence of umklapp scattering, the existence of the Fermi-liquid ($T^2$) term in resistivity of a…

材料科学 · 物理学 2016-03-08 H. K. Pal , V. I. Yudson , D. L. Maslov

We present first-principles calculations of electron-electron scattering rates of low-energy electrons in Au. Our full band-structure calculations indicate that a major contribution from occupied d states participating in the screening of…

材料科学 · 物理学 2009-10-31 I. Campillo , J. M. Pitarke , A. Rubio , P. M. Echenique

We investigate energy resolved electric current from various correlated host materials under out-of-equilibrium conditions. We find that, due to a combined effect of electron-electron interactions, non-equilibrium and multi-particle…

强关联电子 · 物理学 2009-11-07 Andrei Komnik , Alexander O. Gogolin

The thermodynamic properties of two-component Fermi gases with divergent scattering length is investigated and the transition temperature for the emergence of a stable dimeric gas is obtained by a simple theoretical model where the unique…

统计力学 · 物理学 2007-05-23 Hongwei Xiong , Shujuan Liu , Mingsheng Zhan

The electron-electron scattering increases the resistance of ballistic many-mode channels whose width is smaller than their length. We show that this increase saturates in the limit of infinitely long channels. Because the mechanisms of…

介观与纳米尺度物理 · 物理学 2018-04-12 K. E. Nagaev

Effects due to the proximity of a superconductor has motivated a lot of research work in the last several decades both from theoretical and experimental point of view. In this review we are going to describe the physics of systems…

介观与纳米尺度物理 · 物理学 2015-06-16 Arijit Saha

We study theoretically the electron transport in a 1D conductor adiabatically connected to a superconducting and normal metal leads. In the case of non-interacting we show that ac voltage applied along with dc voltage modifies I-V curve…

介观与纳米尺度物理 · 物理学 2015-05-13 P. P. Aseev , S. N. Artemenko

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

Scattering of otherwise ballistic electrons far from equilibrium is investigated in a cold two-dimensional electron system. The interaction between excited electrons and the degenerate Fermi liquid induces a positive charge in a nanoscale…

介观与纳米尺度物理 · 物理学 2010-10-27 D. Taubert , G. J. Schinner , H. P. Tranitz , W. Wegscheider , C. Tomaras , S. Kehrein , S. Ludwig

The role of electron-electron interactions on two-dimensional Dirac fermions remains enigmatic. Using a combination of nonperturbative numerical and analytical techniques that incorporate both the contact and long-range parts of the Coulomb…

强关联电子 · 物理学 2018-08-14 Ho-Kin Tang , J. N. Leaw , J. N. B. Rodrigues , I. F. Herbut , P. Sengupta , F. F. Assaad , S. Adam

The damping of single-particle degrees of freedom in strongly correlated two-dimensional Fermi systems is analyzed. Suppression of the scattering amplitude due to the damping effects is shown to play a key role in preserving the validity of…

强关联电子 · 物理学 2009-11-11 V. A. Khodel , M. V. Zverev , J. W. Clark