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Viscous flow of interacting electrons in two dimensional materials features a bunch of exotic effects. A model resembling the Navier-Stokes equation for classical fluids accounts for them in the so called hydrodynamic regime. We performed a…

介观与纳米尺度物理 · 物理学 2025-07-01 Jorge Estrada-Álvarez , Francisco Domínguez-Adame , Elena Díaz

We study the Casimir friction phenomenon in a system consisting of two flat, infinite, and parallel graphene sheets, which are coupled to the vacuum electromagnetic (EM) field. Those couplings are implemented, in the description we use, by…

高能物理 - 理论 · 物理学 2017-04-12 M. Belén Farias , César D. Fosco , Fernando C. Lombardo , Francisco D. Mazzitelli

Though electrical noise and conduction current are assigned to corpuscle-like electrons drifting in solid matter, this model hardly fits in the Fluctuation-Dissipation framework. However, fluctuations of energy due to displacements of…

其他凝聚态物理 · 物理学 2025-07-17 Jose-Ignacio Izpura

Graphene and few-layer graphene at high bias expose a wealth of phenomena due to the high temperatures reached. With in-situ transmission electron microscopy (TEM) we observe directly how the current modifies the structure, and vice versa.…

介观与纳米尺度物理 · 物理学 2013-01-30 Amelia Barreiro , Felix Boerrnert , Mark H. Ruemmeli , Bernd Buechner , Lieven M. K. Vandersypen

We describe mathematically the apparently paradoxical phenomenon that an electronic current in a semiconductor can flow because of collisions, and not despite them. A transport model of charge transport in a one-dimensional semiconductor…

统计力学 · 物理学 2020-06-25 Luigi Barletti

We measure the conductivity of neutral fermions in a cubic optical lattice. Using in-situ fluorescence microscopy, we observe the alternating current resultant from a single-frequency uniform force applied by displacement of a weak harmonic…

We consider the release from a point source of relatively heavy fluid into a porous saturated medium above an impermeable slope. We consider the case where the volume of the resulting gravity current increases with time like $t^\alpha$ and…

流体动力学 · 物理学 2007-05-23 Dominic Vella , Herbert E. Huppert

We develop a one-dimensional network model to predict the steady-state distribution of yield-stress fluids in branched pipe manifolds under wall-slip conditions. The model accounts for major friction losses between junctions and…

流体动力学 · 物理学 2025-11-18 Elliott Sutton , Waldo Rosales Trujillo , Adam Kowalski , Cláudio P. Fonte , Anne Juel

In the present paper which is a sequel to [N.B. Volkov and A.M. Iskoldsky The dynamics of vortex structures and states of current: 1;[1]], the dynamics of non-equilibrium phase transitions and states of current in electrophysical systems…

chao-dyn · 物理学 2008-02-03 N. B. Volkov , A. M. Iskoldsky

In graphene, where the electron-electron scattering is dominant, electrons collectively act as a fluid. This hydrodynamic behaviour of charge carriers leads to exciting nonlinear phenomena such as solitary waves and shocks, among others. In…

介观与纳米尺度物理 · 物理学 2024-04-12 Pedro Cosme , Hugo Terças

An improved diffuse boundary condition, where the number flux of the incoming real molecules on the wall surface is calculated using the molecular variables rather than the cell's macroscopic variables, is proposed to eliminate the…

计算物理 · 物理学 2014-03-18 Jun Li

Longitudinal non-dissipative current states in bilayer electron-hole systems in the presence of potential barriers that divide the system into left and right sides was investigated. The consideration is performed both for the case of weak…

介观与纳米尺度物理 · 物理学 2026-03-13 S. I. Shevchenko , O. M. Konstantynov

We have used scanning gate microscopy to explore the local conductivity of a current-annealed graphene flake. A map of the local neutrality point (NP) after annealing at low current density exhibits micron-sized inhomogeneities. Broadening…

介观与纳米尺度物理 · 物理学 2010-03-31 M. R. Connolly , K. L. Chiou , C. G. Smith , D. Anderson , G. A. C. Jones , A. Lombardo , A. Fasoli , A. C. Ferrari

We study noise spectra of currents through a tunnel junction in weak tunneling limit. We introduce effective capacitance to take into account the interaction effect and explicitly incorporate the electromagnetic environment of the junction…

凝聚态物理 · 物理学 2008-04-12 Hyunwoo Lee , L. S. Levitov

We consider the time evolution of a sessile drop of volatile partially wetting liquid on a rigid solid substrate. Thereby, the drop evaporates under strong confinement, namely, it sits on one of the two parallel plates that form a narrow…

流体动力学 · 物理学 2023-08-11 S. Hartmann , C. Diddens , M. Jalaal , U. Thiele

We report on the formation of a dispersive shock wave in a nonlinear optical medium. We monitor the evolution of the shock by tuning the incoming beam power. The experimental observations for the position and intensity of the solitonic edge…

量子气体 · 物理学 2021-05-20 T. Bienaimé , M. Isoard , Q. Fontaine , A. Bramati , A. M. Kamchatnov , Q. Glorieux , N. Pavloff

We present a theoretical description of energy transfer processes between two noncontact quasi- twodimensional crystals separated by distance a, oscillating with frequency omega0 and amplitude rho0 , and compare it with the case of two…

介观与纳米尺度物理 · 物理学 2018-09-12 Vito Despoja , Pedro M. Echenique , Marijan Sunjic

We consider the hydrodynamic flow of an electron fluid in a channel formed in a two-dimensional electron gas (2DEG) with no-slip boundary conditions. To generate vorticity in the fluid the flow is influenced by an array of micromagnets on…

介观与纳米尺度物理 · 物理学 2024-05-06 Jack N. Engdahl , Aydın Cem Keser , Thomas Schmidt , Oleg P. Sushkov

We study the interaction between tides and convection in astrophysical bodies by analysing the effect of a homogeneous oscillatory shear on a fluid flow. This model can be taken to represent the interaction between a large-scale periodic…

太阳与恒星天体物理 · 物理学 2015-06-03 Gordon I. Ogilvie , Geoffroy Lesur

A model is presented for predicting the open-circuit voltage (OCV) and lithium distribution within lithium-ion anodes containing multiple materials, coupling linear elasticity with a stress-dependent chemical potential. The model is applied…

材料科学 · 物理学 2019-08-02 Ian P. E. Roper , S. Jon Chapman , Colin P. Please