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Electron transport in clean 2D systems with weak electron-phonon (e-ph) coupling can transition from an Ohmic to a ballistic or a hydrodynamic regime. The ballistic regime occurs when electron-electron (e-e) scattering is weak whereas the…

介观与纳米尺度物理 · 物理学 2019-04-10 Mani Chandra , Gitansh Kataria , Deshdeep Sahdev , Ravishankar Sundaraman

We consider the nonequilibrium protocol where two semi-infinite gapped XXZ chains, initially prepared in different equilibrium states, are suddenly joint together. At large times, a generalized hydrodynamic description applies, according to…

统计力学 · 物理学 2017-09-15 Lorenzo Piroli , Jacopo De Nardis , Mario Collura , Bruno Bertini , Maurizio Fagotti

We develop a purely hydrodynamic formalism to describe collisional, anisotropic instabilities in a relativistic plasma, that are usually described with kinetic theory tools. Our main motivation is the fact that coarse-grained models of high…

高能物理 - 唯象学 · 物理学 2017-01-04 Esteban Calzetta , Alejandra Kandus

Vortices in electron fluids are a key indicator of electron hydrodynamics. However, a comprehensive framework linking macroscopic vorticity measurements with microscopic interactions and scattering mechanisms has been lacking. We employ…

介观与纳米尺度物理 · 物理学 2024-09-27 Khachatur G. Nazaryan , Leonid Levitov

We study the hydrodynamic behavior of three dimensional (3D) incompressible collections of self-propelled entities in contact with a momentum sink in a state with non-zero average velocity, hereafter called 3D easy-plane incompressible…

软凝聚态物质 · 物理学 2018-10-31 Leiming Chen , Chiu Fan Lee , John Toner

We present a semiclassical theory for electron drag between two parallel two-dimensional electron systems in a strong magnetic field, which provides a transparent picture of the most salient qualitative features of anomalous drag phenomena…

介观与纳米尺度物理 · 物理学 2009-11-10 Sergej Brener , Walter Metzner

In this paper we use non-Gaussian hydrodynamics to study the magnetic response of a flux-line liquid in the mixed state of a type-II superconductor. Both the derivation of our model, which goes beyond conventional Gaussian flux liquid…

超导电性 · 物理学 2009-10-31 Panayotis Benetatos , M. Cristina Marchetti

We use time-dependent (current) density functional theory to study collective transitions between the two lowest subbands in GaAs/AlGaAs quantum wells. We focus on two systems where experimental results are available: a wide single and a…

介观与纳米尺度物理 · 物理学 2009-10-31 C. A. Ullrich , G. Vignale

We consider a thin horizontal layer of a non-magnetic electrolyte containing a bulk solution of salt and carrying an electric current. The layer is bounded by two deformable free surfaces loaded with an insoluble surfactant and is placed in…

流体动力学 · 物理学 2023-10-10 Andrey Pototsky , Sergey A. Suslov

We have investigated the local magneto-transport in high-quality 2D electron systems at low carrier densities. The positive magneto-resistance in perpendicular magnetic field in the strongly insulating regime has been measured to evaluate…

介观与纳米尺度物理 · 物理学 2009-11-10 A. Ghosh , M. Pepper , H. E. Beere , D. A. Ritchie

We report experimental results of low temperature magnetotransport in high mobility 2D electron systems exposed to radiation up to 20GHz frequency using a simple dipole configuration. Magnetoresistance oscillations are observed as in…

介观与纳米尺度物理 · 物理学 2009-11-10 R. L. Willett , L. N. Pfeiffer , K. W. West

We use fluctuating hydrodynamics to analyze the dynamical properties in the non-equilibrium steady state of a diffusive system coupled with reservoirs. We derive the two-time correlations of the density and of the current in the…

统计力学 · 物理学 2016-11-23 Tridib Sadhu , Bernard Derrida

We develop a covariant formalism to study nonlinear perturbations of dissipative and interacting relativistic fluids. We derive nonlinear evolution equations for various covectors defined as linear combinations of the spatial gradients of…

天体物理学 · 物理学 2009-11-11 David Langlois , Filippo Vernizzi

We apply the recently established connection between nonlinear fluid dynamics and AdS gravity to the case of the dyonic black brane in AdS_4. This yields the equations of fluid dynamics for a 2+1 dimensional charged fluid in a background…

高能物理 - 理论 · 物理学 2009-04-17 James Hansen , Per Kraus

We present the equations of relativistic hydrodynamics coupled to dynamical electromagnetic fields, including the effects of polarization, electric fields, and the derivative expansion. We enumerate the transport coefficients at leading…

高能物理 - 理论 · 物理学 2017-08-10 Juan Hernandez , Pavel Kovtun

A fluid description for collisionless magnetized plasmas that takes into account the effect of cyclotron resonance has been developed. Following the same approach as the Landau fluid closure, the heat flux components associated with…

等离子体物理 · 物理学 2021-04-13 Taiki Jikei , Takanobu Amano

In this article we revisit the significance of the often debated structural similarity between the equations of electromagnetism and fluid dynamics. Although the matching of the two sets of equations has successfully been done for…

流体动力学 · 物理学 2016-03-01 Bob Osano , Patrick Adams

We study the transport properties of the two-dimensional electron gas in AlGaAs/GaAs heterostructures in parallel to the interface magnetic fields at low temperatures. The magnetoresistance in the metallic phase is found to be positive and…

介观与纳米尺度物理 · 物理学 2007-05-23 V. S. Khrapai , E. V. Deviatov , A. A. Shashkin , V. T. Dolgopolov

The success of spectroscopy to characterise equilibrium fluids, for example the heat capacity ratio, suggests a parallel approach for active fluids. Here, we start from a hydrodynamic description of chiral active fluids composed of spinning…

软凝聚态物质 · 物理学 2022-07-22 Debarghya Banerjee , Anton Souslov , Vincenzo Vitelli

We present expressions for the magnetoconductivity and the magnetoresistance of a strongly interacting metal in 3+1 dimensions, derivable from relativistic hydrodynamics. Such an approach is suitable for ultraclean metals with emergent…

高能物理 - 理论 · 物理学 2017-06-28 Andrew Baumgartner , Andreas Karch , Andrew Lucas