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We consider the proximity effect in a normal dot coupled to a bulk superconducting reservoir by the tunnel contact with large normal conductance. Coulomb interaction in the dot suppresses the proximity minigap induced in the normal part of…

介观与纳米尺度物理 · 物理学 2007-05-23 P. M. Ostrovsky , M. A. Skvortsov , M. V. Feigel'man

In ab initio calculations of superconducting properties, the Coulomb repulsion is accounted for at the GW level and is usually computed in RPA, which amounts to neglecting vertex corrections both at the polarizability level and in the…

超导电性 · 物理学 2023-10-12 Camilla Pellegrini , Carl Kukkonen , Antonio Sanna

We study the interplay between Coulomb blockade and superconductivity in a tunable superconductor-superconductor-normal metal single-electron transistor. The device is realized by connecting the superconducting island via an oxide barrier…

In this review, we first present compelling evidence from resonant inelastic x-ray scattering data that highlights the significance of the long-range Coulomb interaction in cuprate charge dynamics, particularly around the in-plane momentum…

强关联电子 · 物理学 2026-02-04 Hiroyuki Yamase

We study the influence of the repulsive Coulomb interactions on thermodynamic properties of the boson fermion model with an anisotropic (d-wave, and extended s-wave) order parameter. Superconductivity is induced in this model from the…

超导电性 · 物理学 2009-11-07 T. Domanski

The density of states of the disordered s-wave superconductor is calculated perturbatively. The effect of Coulomb interaction on diffusively moving electrons in the normal state has been known before, but in the superconducting state both…

超导电性 · 物理学 2019-10-03 Takanobu Jujo

Interfacing s-wave superconductors and quantum spin Hall edges produces time-reversal-invariant topological superconductivity of a type that can not arise in strictly 1D systems. With the aim of establishing sharp fingerprints of this novel…

介观与纳米尺度物理 · 物理学 2016-10-13 David Aasen , Shu-Ping Lee , Torsten Karzig , Jason Alicea

We study a dirty two-dimensional superconductor with Rashba spin-orbit coupling and in-plane Zeeman fields described by the nonlinear sigma model that includes the Cooper and long-range Coulomb interactions. The renormalized Ginzburg-Landau…

超导电性 · 物理学 2026-03-19 Naratip Nunchot , Youichi Yanase

We study theoretically the effects of long-range and on-site Coulomb interactions on the topological phases and transport properties of spin-orbit-coupled quasi-one-dimensional quantum wires imposed on an s-wave superconductor. The…

超导电性 · 物理学 2016-10-12 Hengyi Xu , Ye Xiong , Jun Wang

We investigate the nonlocal thermoelectric transport in a Cooper-pair splitter based on a double-quantum-dot-superconductor three-terminal hybrid structure. We find that the nonlocal coupling between the superconductor and the quantum dots…

介观与纳米尺度物理 · 物理学 2019-02-20 Robert Hussein , Michele Governale , Sigmund Kohler , Wolfgang Belzig , Francesco Giazotto , Alessandro Braggio

Experimental observations of large exciton binding energies and non-hydrogenic Rydberg series in 2D semiconducting TMDs, along with deviations in plasmon dispersion in 2D metallic TMDs, suggest the presence of a nonconventional screening of…

We discuss the role of strong Coulomb interactions in iron-based superconductors (FeSCs). The presumed $s^{\pm}$ character of these superconductors means that the condensate is not symmetry protected against Coulomb repulsion. Remarkably,…

超导电性 · 物理学 2019-05-01 Elio J. König , Piers Coleman

Spatial distribution of local tunneling conductivity was investigated for deep and shallow impurities on semiconductor surfaces. Non-equilibrium Coulomb interaction and interference effects were taken into account and analyzed theoretically…

介观与纳米尺度物理 · 物理学 2015-05-19 V. N. Mantsevich , N. S. Maslova

We examine the influence of the superconducting proximity effect on the transport properties of a T-shaped double quantum dot strongly coupled to two normal, nonmagnetic or ferromagnetic leads. We show that the two-stage Kondo screening may…

介观与纳米尺度物理 · 物理学 2018-07-02 Krzysztof P. Wójcik , Ireneusz Weymann

We discuss a reduction of superconducting transition temperature by the intersite Coulomb repulsion for the d-wave pairing in cuprates. We compare the results found for the spin-fermion model and the extended Hubbard model. We argue that in…

强关联电子 · 物理学 2016-07-12 N. Plakida

We analyze the effect of the non-vanishing range of electron-electron repulsion on the mechanism of unconventional superconductivity. We present asymptotically exact weak-coupling results for dilute electrons in the continuum and for the 2D…

超导电性 · 物理学 2012-09-13 S. Raghu , E. Berg , A. V. Chubukov , S. A. Kivelson

A detailed investigation of the non-equilibrium steady-state electric and thermoelectric transport properties of a quantum dot coupled to the normal metallic and s-wave superconducting reservoirs (N-QD-S) are provided within the Coulomb…

介观与纳米尺度物理 · 物理学 2022-02-22 Sachin Verma , Ajay

Novel effects emerge from an interplay between multiple Andreev reflections and Coulomb interaction in quantum dot coupled to superconducting leads and subject to a finite potential bias $V$. Combining an intuitive physical picture with…

强关联电子 · 物理学 2009-10-31 Yshai Avishai , Anatoly Golub , Andrei D. Zaikin

The pair-fluctuation contribution reduces the electrostatic screening length in superconductivity as compared to the normal state. When a conductor possesses a static background charge distribution, superconductivity arises even in the…

超导电性 · 物理学 2014-04-28 Kosuke Odagiri

We argue that Coulomb interaction can strongly influence non-local electron transport in normal-superconducting-normal structures and emphasize direct relation between Coulomb effects and non-local shot noise. In the tunneling limit…

超导电性 · 物理学 2010-12-06 Dmitri S. Golubev , Andrei D. Zaikin