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Kinematic constraint arising in the case of superconducting pairing with large momentum results in a cutoff of the screened Coulomb potential excluding large momentum transfers. This leads to a pairing potential oscillating in the real…

超导电性 · 物理学 2007-05-23 V. I. Belyavsky , Yu. V. Kopaev

We develop a theory of Coulomb drag in ultraclean double layers with strongly correlated carriers. In the regime where the equilibration length of the electron liquid is shorter than the interlayer spacing the main contribution to the…

强关联电子 · 物理学 2015-06-18 S. S. Apostolov , A. Levchenko , A. V. Andreev

Condensed matter is composed of a small set of identical units, yet it shows an immense range of behaviour. Recently, an array of cold atoms was used to generate long-range quantum entanglement, a property of topological matter. Another…

Electron interactions are pivotal for defining the electronic structure of quantum materials. In particular, the strong electron Coulomb repulsion is considered the keystone for describing the emergence of exotic and/or ordered phases of…

We investigate spherical macroions in the strong Coulomb coupling regime within the primitive model in salt-free environment. We first show that the ground state of an isolated colloid is naturally overcharged by simple electrostatic…

软凝聚态物质 · 物理学 2016-08-16 René Messina , Christian Holm , Kurt Kremer

A material which is an insulator entirely because of interaction effects is called a correlated insulator. Examples are trans-polyacetylene and the cuprate high temperature superconductors. Whereas doping of a band insulator results in a…

凝聚态物理 · 物理学 2016-08-31 S. A. Kivelson , V. J. Emery

It is argued that a superconducting instability appears in the electronic states on the surface of a topological insulator due purely to electromagnetic interactions. The discussion of this instability is based on the analysis of the…

超导电性 · 物理学 2011-03-29 Alberto Cortijo

We show that doping-induced charge fluctuations in strongly correlated Hubbard electron systems near the 1/2-filled, insulating limit cause overscreening of the electron-electron Coulomb repulsion. The resulting attractive screened…

超导电性 · 物理学 2007-05-23 H. -B. Schüttler , C. Gröber , H. G. Evertz , W. Hanke

We study the interlayer scattering mediated by long-range Coulomb interaction between electrons (density n) and holes (p) in a double-layer system. The gated device is made of InAs (e) and InGaSb (h) quantum wells separated by a AlSb middle…

强关联电子 · 物理学 2019-03-12 Xingjun Wu , Wenkai Lou , Kai Chang , Gerard Sullivan , Rui-Rui Du

Strongly interacting systems of dipolar bosons in three dimensions confined by harmonic traps are analyzed using the exact Path Integral Ground State Monte Carlo method. By adding a repulsive two-body potential, we find a narrow window of…

量子气体 · 物理学 2016-11-15 A. Macia , J. Sánchez-Baena , J. Boronat , F. Mazzanti

We investigate correlation physics in high-density, two-dimensional electron liquids that reside in narrow SrTiO3 quantum wells. The quantum wells are remotely doped via an interfacial polar discontinuity and the three-dimensional (3D)…

强关联电子 · 物理学 2013-11-26 Pouya Moetakef , Clayton A. Jackson , Jinwoo Hwang , Leon Balents , S. James Allen , Susanne Stemmer

We argue that although at asymptotically high temperatures the QGP in bulk behaves as a gas of weakly interacting quasiparticles (modulo long-range magnetism), at temperatures up to few times the critical temperature $T_c$ it displays…

高能物理 - 唯象学 · 物理学 2016-09-06 Edward V. Shuryak , Ismail Zahed

Electron transport in a quantum wire with leads is investigated with actual Coulomb interaction taken into account. The latter includes both the direct interaction of electrons with each other and their interaction via the image charges…

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

We develop a Boltzmann-Langevin description of Coulomb drag effect in clean double-layer systems with large interlayer separation $d$ as compared to the average interelectron distance $\lambda_F$. Coulomb drag arises from density…

介观与纳米尺度物理 · 物理学 2015-06-10 W. Chen , A. V. Andreev , A. Levchenko

With recent experiments investigating the optical properties of progressively smaller plasmonic particles, quantum effects become increasingly more relevant, requiring a microscopic description. Using the density matrix formalism we analyze…

介观与纳米尺度物理 · 物理学 2018-10-17 Alexandra Crai , Andreas Pusch , Doris E. Reiter , Lara Román Castellanos , Tilmann Kuhn , Ortwin Hess

In quantum-kinetic approaches to the dynamics of Coulomb-bound many-body correlations such as excitons, trions, biexcitons or higher-order correlations, a detailed knowledge of the many-body Coulomb Hamiltonian serving as a starting point…

介观与纳米尺度物理 · 物理学 2026-02-17 Henry Mittenzwey , Andreas Knorr , Thorsten Deilmann

Colloidal particles that are confined to an interface such as the air-water interface are an example of a two-dimensional fluid. Such dispersions have been observed to spontaneously form cluster and stripe morphologies in certain systems…

软凝聚态物质 · 物理学 2008-09-17 A. J. Archer

We study the properties of two electrons with Coulomb interactions in a tight-binding model of La-based cuprate superconductors. This tight-binding model is characterized by long-range hopping obtained previously by advanced quantum…

超导电性 · 物理学 2021-10-26 K. M. Frahm , D. L. Shepelyansky

Exact thermal studies of small (4-site, 5-site and 8-site) Hubbard clusters with local electron repulsion yield intriguing insight into phase separation, charge-spin separation, pseudogaps, condensation, in particular, pairing fluctuations…

强关联电子 · 物理学 2015-06-25 G. W. Fernando , A. N. Kocharian , K. Palandage , Tun Wang , J. W. Davenport

We found analytical solution for the time evolution of localized electron density in a system of two coupled single-level quantum dots (QDs) connected with continuous spectrum states in the presence of Coulomb interaction. This solution…

介观与纳米尺度物理 · 物理学 2013-12-30 P. I. Arseev , N. S. Maslova , V. N. Mantsevich