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Hydrodynamics provides a universal description of interacting quantum field theories at sufficiently long times and wavelengths, but breaks down at scales dependent on microscopic details of the theory. In the vicinity of a quantum critical…

高能物理 - 理论 · 物理学 2021-08-11 Daniel Arean , Richard A. Davison , Blaise Goutéraux , Kenta Suzuki

Five-moment approximation in hydrodynamics includes not only continuity equation and momentum balance equation, but also energy equation. Set of hydrodynamic equations is presented for system of non-relativistic quantum particles with…

等离子体物理 · 物理学 2013-08-12 A. Yu. Ivanov , L. S. Kuz'menkov

We present nonlinear dynamic equations for nematic and smectic $A$ liquid crystals in the presence of an alternating electric field and explain their derivation in detail. The local electric field acting in any liquid-crystalline system is…

软凝聚态物质 · 物理学 2023-06-30 E. S. Pikina , E. I. Kats , A. R. Muratov , V. V. Lebedev

The open problem of derivation of the relativistic Vlasov equation for the systems of charged particles moving with the velocities up to the speed of light and creating the electromagnetic field in accordance with the full set of the…

等离子体物理 · 物理学 2022-04-26 Pavel A. Andreev

We develop a hydrodynamic description of the resistivity and magnetoresistance of an electron liquid in a smooth disorder potential. This approach is valid when the electron-electron scattering length is sufficiently short. In a broad range…

介观与纳米尺度物理 · 物理学 2011-09-12 A. V. Andreev , Steven A. Kivelson , B. Spivak

Basic equations of nonequilibrium thermo field dynamics of dense quantum systems are presented. A formulation of nonequilibrium thermo field dynamics has been performed using the nonequilibrium statistical operator method by D.N.Zubarev.…

核理论 · 物理学 2007-05-23 M. V. Tokarchuk , T. Arimitsu , A. E. Kobryn

Quantum hydrodynamic (QHD) model of charged spin-1/2 particles contains physical quantities defined for all particles of a species including particles with spin-up and with spin-down. Different population of states with different spin…

等离子体物理 · 物理学 2015-04-01 Pavel A. Andreev

A quantum field model of helical MHD stochastically forced by gaussian hydrodynamic, magnetic and mixed noices is investigated. These helical noises lead to an exponential increase of magnetic fluctuations in the large scale range.…

混沌动力学 · 物理学 2007-05-23 M. Hnatic , M. Jurcisin , M. Stehlik

Hydrodynamics of plasma in the random magnetic field is considered, which is characterized by the second moment of magnetic induction. Equations of ideal magnetic hydrodynamics in such field are received for an adiabatic process. It is…

等离子体物理 · 物理学 2016-03-02 A. A. Stupka

We derive and investigate several hydrodynamic formalisms that emerge from a system of classical, ultra-relativistic scalar particles self-interacting via a quartic potential. The specific form of the total cross-section enables the…

核理论 · 物理学 2023-08-23 Gabriel S. Rocha , Caio V. P. de Brito , Gabriel S. Denicol

We consider a hydrodynamic description of transport for generic two dimensional electron systems that lack Galilean invariance and do not fall into the category of Fermi liquids. We study magnetoresistance and show that it is governed only…

强关联电子 · 物理学 2017-11-13 Aavishkar A. Patel , Richard A. Davison , Alex Levchenko

Contrary to common belief, the current emitted by a contact embedded in a two-dimensional electron gas (2DEG) is quantized in the presence of electric and magnetic fields. This observation suggests a simple, clearly defined model for the…

介观与纳米尺度物理 · 物理学 2007-05-23 Tobias Kramer

In this work, the action of the relativistic electron is derived from the hydrodynamic formulation of the Dirac equation. In particular, in the hydrodynamic scenario, the four-velocity of the electron is regarded as an Eulerian field and…

量子物理 · 物理学 2023-09-12 Loris D'Alessi

We use holography to derive effective theories of fluctuations in spontaneously broken phases of systems with finite temperature, chemical potential, magnetic field and momentum relaxation in which the order parameters break translations.…

高能物理 - 理论 · 物理学 2021-06-16 Aristomenis Donos , Christiana Pantelidou , Vaios Ziogas

Hydrodynamics is based on conservation laws of currents: one starts from the conserved currents of the theory describing the microscopic dynamics, and provides an alternative parameterisation of these currents in terms of hydrodynamic…

高能物理 - 理论 · 物理学 2026-03-11 Simon Jonsson , Hyungrok Kim

Hydrodynamics provides a concise but powerful description of long-time and long-distance physics of correlated systems out of thermodynamic equilibrium. Here we construct hydrodynamic equations for nonrelativistic particles with a…

量子气体 · 物理学 2018-12-27 Keisuke Fujii , Yusuke Nishida

One of the main macroscopic differences between ordinary and highly viscous fluids is the lack of transverse sound in the first and possibility of its excitation in the second. In modern high-mobility conductors (Weyl semimetals,…

介观与纳米尺度物理 · 物理学 2019-12-11 P. S. Alekseev , A. P. Alekseeva

In this paper we consider the one dimensional quantum hydrodynamics (QHD) system, with a genuine hydrodynamic approach. The global existence of weak solutions with large data has been obtained in [2, 3], in several space dimensions, by…

偏微分方程分析 · 数学 2021-01-26 Paolo Antonelli , Pierangelo Marcati , Hao Zheng

The von Karman-Howarth equations are derived for three-dimensional (3D) Hall magnetohydrodynamics (MHD) in the case of an homogeneous and isotropic turbulence. From these equations, we derive exact scaling laws for the third-order…

天体物理学 · 物理学 2008-11-26 S. Galtier

We introduce here the equations of magneto-quantum-radiative hydrodynamics. By rewriting them in a dimensionless form, we obtain a set of parameters that describe scale-dependent ratios of all the characteristic hydrodynamic quantities. We…

天体物理仪器与方法 · 物理学 2015-06-18 Joseph E. Cross , Brian Reville , Gianluca Gregori