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相关论文: Non-static Analysis of the Anomalous Chiral Conduc…

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The linear band crossings of 3D Dirac and Weyl semimetals are characterized by a charge chirality, the parallel or anti-parallel locking of electron spin to its momentum. Such materials are believed to exhibit a ${\bf E} \cdot {\bf B}$…

材料科学 · 物理学 2021-06-01 Bing Cheng , Timo Schumann , Susanne Stemmer , N. P. Armitage

Parallel electric and magnetic fields applied to Weyl semimetals pump axial charge via the axial anomaly until balanced by intervalley relaxation. The resulting nonequilibrium steady state exhibits the chiral magnetic effect as well as the…

介观与纳米尺度物理 · 物理学 2023-03-01 Yusuke Nishida

We propose a mechanism to generate dissipationless current in time reversal symmetry breaking Weyl semimetals through the anomalous chiral magnetic effect (ACME). The ACME current is induced by chiral imbalance and flows along the direction…

介观与纳米尺度物理 · 物理学 2021-09-21 Long Liang

A new method to perform linear and finite bias conductance calculations in one dimensional systems based on the calculation of real time evolution within the Density Matrix Renormalization Group (DMRG) is presented. We consider a system of…

强关联电子 · 物理学 2007-05-23 Guenter Schneider , Peter Schmitteckert

An expression for the conductance of interacting electrons in the diffusive regime as a function of the ensemble averaged persistent current and the compressibility of the system is presented. This expression involves only ground-state…

凝聚态物理 · 物理学 2009-10-28 Richard Berkovits , Yshai Avishai

Our goal is to examine the role of anomalies in the hydrodynamic regime of field theories. We employ methods based on gauge/gravity duality to examine R-charge anomalies in the hydrodynamic regime of stronly t'Hooft coupled, large N, N = 4…

高能物理 - 唯象学 · 物理学 2009-11-11 G. M. Newman

Based on a recent proposal [O.P. Sushkov, Phys. Rev. B 64, 155319 (2001)], we relate the quantum conductance through a sample in which electrons are strongly correlated to the persistent current of a large ring, composed of the sample and a…

Magnetic field is unstable in a medium with time-independent chiral conductivity. Owing to the chiral anomaly, the electromagnetic field and the medium exchange helicity which results in time-evolution of the chiral conductivity. Using the…

核理论 · 物理学 2018-03-14 Kirill Tuchin

We explore the relationship between linear and non-linear causality in theories of dissipative relativistic fluid dynamics. While for some fluid-dynamical theories, a linearized causality analysis can be used to determine whether the full…

高能物理 - 理论 · 物理学 2024-11-08 Raphael E. Hoult , Pavel Kovtun

In quantum chromodynamics, a gauge field configuration with nonzero topological charge generates a difference between the number of left- and right-handed quarks. When a (electromagnetic) magnetic field is added to this configuration, an…

高能物理 - 唯象学 · 物理学 2014-11-20 Kenji Fukushima , Dmitri E. Kharzeev , Harmen J. Warringa

Nonlinear effects are omnipresent in thin films of ion conducting materials showing up as a significant increase of the conductivity. For a disordered hopping model general physical mechanisms are identified giving rise to the occurrence of…

无序系统与神经网络 · 物理学 2015-06-18 Andreas Heuer , Lars Luehning

We compute the magneto-conductance of a short junction made out of a Weyl semi-metal. We show that it displays quantum oscillations at low magnetic field and low temperature, before reaching a universal high-field regime where it increases…

介观与纳米尺度物理 · 物理学 2017-11-20 Thibaud Louvet , Manuel Houzet , David Carpentier

We present a model to describe the nonlinear response to a direct dc current applied to a two-dimensional electron system in a strong magnetic field. The model is based on the solution of the von Neumann equation incorporating the exact…

介观与纳米尺度物理 · 物理学 2010-09-21 A. Kunold , M. Torres

We derive the system of equations that allows to include non-equilibrium correlations of filling numbers into the theory of the hopping transport. The system includes the correlations of arbitrary order in a universal way and can be cut at…

无序系统与神经网络 · 物理学 2019-07-31 A. V. Shumilin , Y. M. Beltukov

The complex ac-response of a quasi-one dimensional electron system in the one-band approximation with an interaction potential of finite range is investigated. It is shown that linear response is exact for this model. The influence of the…

介观与纳米尺度物理 · 物理学 2007-05-23 Gianaurelio Cuniberti , Maura Sassetti , Bernhard Kramer

Chiral Anomalous Magnetohydrodynamics (CAMHD) provides a low-energy effective framework for describing chiral fluids in the presence of dynamical electromagnetic fields and axial anomaly. This theory finds applications across diverse…

高能物理 - 理论 · 物理学 2025-04-18 Matteo Baggioli , Yanyan Bu , Xiyang Sun

We derive non-linear recursion relations for the leading chiral logarithms (LLs). These relations not only provide a very efficient method of computation of LLs (e.g. the 33-loop contribution is calculated in a dozen of seconds on a PC) but…

高能物理 - 唯象学 · 物理学 2010-04-21 N. Kivel , M. V. Polyakov , A. Vladimirov

We analyze the anisotropy of turbulence in an electrically conducting fluid in the presence of a uniform magnetic field, for low magnetic Reynolds number, using the quasi-static approximation. In the linear limit, the kinetic energy of…

流体动力学 · 物理学 2011-04-01 Benjamin F. N. Favier , Fabien S. Godeferd , Claude Cambon , Alexandre Delache

We study the fractionalization of an electron tunneling into a strongly interacting electronic one-dimensional ring. As a complement to transport measurements in quantum wires connected to leads, we propose non-invasive measures involving…

强关联电子 · 物理学 2013-03-18 Wade DeGottardi , Siddhartha Lal , Smitha Vishveshwara

Metal microbridges with a high impurity content and shorter than the energy relaxation length are considered. Their conductance is calculated with allowance made for the Coulomb electron-electron interaction. It is shown that nonequilibrium…

介观与纳米尺度物理 · 物理学 2009-11-07 K. E. Nagaev
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