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We present a theory for Coulomb drag between two mesoscopic systems which expresses the drag in terms of scattering matrices and wave functions. The formalism can be applied to both ballistic and disordered systems and the consequences can…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Niels Asger Mortensen , Karsten Flensberg , Antti-Pekka Jauho

Strong correlation effects, such as a dramatic increase in the effective mass of the carriers of electricity, recently observed in the low density electron gas have provided spectacular support for the existence of a sharp metal-insulator…

Strongly Correlated Electrons · Physics 2009-11-13 A. Camjayi , K. Haule , V. Dobrosavljevic , G. Kotliar

Elementary electronic excitations, which are due to the Coulomb-field scatterings, present the diverse phenomena in 3D, 2D, 1D-nanotube electron gases, graphene and carbon nanotubes. The critical mechanisms cover the dimension-dependent…

Mesoscale and Nanoscale Physics · Physics 2020-04-20 Cheng-Hsueh Yang , Chiun-Yan Lin , Chih-Wei Chiu , Chang-Ting Liu , Ming-Fa Lin

Do electrons become ferromagnetic just because of their repulisve Coulomb interaction? Our calculations on the three-dimensional electron gas imply that itinerant ferromagnetim of delocalized electrons without lattice and band structure,…

Strongly Correlated Electrons · Physics 2020-06-03 Makus Holzmann , Saverio Moroni

Vertical heterostructures combining different layered materials offer novel opportunities for applications and fundamental studies of collective behavior driven by inter-layer Coulomb coupling. Here we report heterostructures comprising a…

Mesoscale and Nanoscale Physics · Physics 2015-01-09 A. Gamucci , D. Spirito , M. Carrega , B. Karmakar , A. Lombardo , M. Bruna , A. C. Ferrari , L. N. Pfeiffer , K. W. West , Marco Polini , V. Pellegrini

A simple approximate expression in real and reciprocal spaces is given for the static exchange-correlation kernel of a uniform electron gas interacting with the long-range part only of the Coulomb interaction. This expression interpolates…

Materials Science · Physics 2009-11-11 Julien Toulouse

We study conductance fluctuations in a two-dimensional electron gas as a function of chemical potential (or gate voltage) from the strongly insulating to the metallic regime. Power spectra of the fluctuations decay with two distinct…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Dragana Popović , S. Washburn

The Maxwell field equations relative to a uniformly accelerated frame, and the variational principle from which they are obtained, are formulated in terms of the technique of geometrical gauge invariant potentials. They refer to the…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Francis J. Alexander , Ulrich H. Gerlach

Electromagnetism in substance is characterized by permittivity (dielectric constant) and permeability (magnetic permeability). They describe the substance property {\it effectively}. We present a {\it geometric} approach to it. Some models…

Mesoscale and Nanoscale Physics · Physics 2012-09-04 Shoichi Ichinose

Coulomb coupling between proximal layers in graphene heterostructures results in efficient energy transfer between the layers. We predict that, in the presence of correlated density inhomogeneities in the layers, vertical energy transfer…

Mesoscale and Nanoscale Physics · Physics 2013-04-24 Justin C. W. Song , Leonid S. Levitov

In this work we present the construction of a renormalized symplectic form on an extended phases space where the higher order large gauge transformations act canonically. The expressions of the sub$^n$-leading electric charges associated to…

High Energy Physics - Theory · Physics 2023-12-11 Javier Peraza

A self-consistent-field theory is given for the electronic collective modes of a chain containing a finite number, $N$, of Coulomb-coupled spherical two-dimensional electron gases (S2DE's) arranged with their centers along a straight line,…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Liubov Zhemchuzhna , Godfrey Gumbs , Andrii Iurov , Danhong Huang , Bo Gao

We prove a Central Limit Theorem for the linear statistics of two-dimensional Coulomb gases, with arbitrary inverse temperature and general confining potential, at the macroscopic and mesoscopic scales and possibly near the boundary of the…

Mathematical Physics · Physics 2018-03-01 Thomas Leblé , Sylvia Serfaty

The second-order partial derivatives of the Coulomb potential of a point charge can be regularized using the Coulomb potential of a charge of the oblate spheroidal shape that a moving rest-frame-spherical charge acquires by the Lorentz…

Classical Physics · Physics 2007-05-23 V. Hnizdo

In quantum dots or molecules with vibrational degrees of freedom the electron-vibron coupling renormalizes the electronic charging energy. For sufficiently strong coupling, the renormalized charging energy can become negative. Here, we…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Teemu Ojanen , Friedrich C. Gethmann , Felix von Oppen

The electron tunneling is experimentally studied between two-dimensional electron gases (2DEGs) formed in a single-doped-barrier heterostructure in the magnetic fields directed perpendicular to the 2DEGs planes. It is well known that the…

Mesoscale and Nanoscale Physics · Physics 2008-08-25 V. G. Popov , O. N. Makarovskii , V. Renard , L. Eaves , J. -C. Portal

A model of strongly disordered lattice system with long-range Coulomb interactions between localized charge carriers has been considered. The total electronic energy is characterized by the presence of multiple metastable minima (including…

Strongly Correlated Electrons · Physics 2013-03-08 Yuri G. Pogorelov , J. M. B. Lopes dos Santos , J. M. V. P. Lopes

We provide a theoretical description for the coupling between the intersubband excitations of a bi-dimensional electron gas with the electromagnetic field. This description, based on the electrical dipole gauge, applies to an arbitrary…

Quantum Gases · Physics 2012-12-21 Yanko Todorov , Carlo Sirtori

A conformal gauge theory is used to describe and unify myriad electromechanical and magnetomechanical coupling effects observed in solid continua. Using a space-time pseudo-Riemannian metric in a finite-deformation setup and exploiting the…

Classical Physics · Physics 2023-07-19 Pranesh Roy , Sanjeev Kumar , Debasish Roy

Motivated by recent experiments, we study the interaction corrections to the damping of magnetooscillations in a two-dimensional electron gas (2DEG). We identify leading contributions to the interaction-induced damping which are induced by…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Y. Adamov , I. V. Gornyi , A. D. Mirlin