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相关论文: On chiral responses to geometric torsion

200 篇论文

The chiral magnetic and vortical effects denote the generation of dissipationless currents due to magnetic fields or rotation. They can be studied in holographic models with Chern-Simons couplings dual to anomalies in field theory. We study…

高能物理 - 理论 · 物理学 2017-09-20 Christian Copetti , Jorge Fernández-Pendás , Karl Landsteiner , Eugenio Megías

We study the pattern formation of chiral charges in the presence of reactions. We show that, in contrast to the original Turing's mechanism of pattern formation in diffusion-reaction systems, the interplay between chiral effects and…

统计力学 · 物理学 2018-08-02 Naoki Yamamoto

Quantum anomalies give rise to novel transport phenomena, including the generation of a current in a relativistic fluid due to the presence of magnetic field or vorticity. We present an exclusive and direct computation of the chiral anomaly…

高能物理 - 理论 · 物理学 2025-07-04 Rémy Larue , Jérémie Quevillon , Diego Saviot

Nonlinear electrical conduction primarily mediated by an orbital texture is observed in chiral semiconductor Te. We determine the enantiospecific sign of the nonlinear conductance and identify anomalies in its carrier-density dependence.…

介观与纳米尺度物理 · 物理学 2024-07-15 Suguru Okumura , Ryutaro Tanaka , Daichi Hirobe

We present a novel perspective to characterize the chiral magnetic and related effects in terms of angular decomposed modes. We find that the vector current and the chirality density are connected through a surprisingly simple relation for…

高能物理 - 唯象学 · 物理学 2020-07-31 Kenji Fukushima , Takuya Shimazaki , Lingxiao Wang

We propose a non-dissipative transport effect and vortical response in Weyl semimetals in the presence of spatial inhomogeneities, namely a spatially varying tilt of the Weyl cones. We show that when the spectrum is anisotropic and tilted…

介观与纳米尺度物理 · 物理学 2023-02-28 Saber Rostamzadeh , Sevval Tasdemir , Mustafa Sarisaman , S. A. Jafari , Mark-Oliver Goerbig

We investigate the relationship between Hall viscosity, spin density and response to geometric torsion. For the most general effective action for relativistic gapped systems, the presence of non-universal terms implies that there is no…

高能物理 - 理论 · 物理学 2015-01-15 Michael Geracie , Siavash Golkar , Matthew M. Roberts

We analyze a holographic model with a pure gauge and a mixed gauge-gravitational Chern-Simons term in the action. These are the holographic implementations of the usual chiral and the mixed gauge-gravitational anomalies in four dimensional…

高能物理 - 理论 · 物理学 2015-05-28 Karl Landsteiner , Eugenio Megias , Luis Melgar , Francisco Pena-Benitez

Using a covariant formalism, we construct a chiral kinetic theory Lorentz invariant to order $\mathcal O(\hbar)$ which includes collisions. We find a new contribution to the particle number current due to the side jumps required by the…

高能物理 - 理论 · 物理学 2015-07-15 Jing-Yuan Chen , Dam T. Son , Mikhail A. Stephanov

We perform an explicit calculation of the axial current at finite rotation and temperature in curved space. We find that finite curvature and mass corrections to the chiral vortical effect satisfy a relation of the chiral gap effect, that…

高能物理 - 理论 · 物理学 2018-11-21 Antonino Flachi , Kenji Fukushima

Acoustic waves in fluid with spin-0 nature have been long believed not to support spin Hall effect and strong orbital Hall effect that enables experimental observation. Here we report the first theoretical explication and experimental…

经典物理 · 物理学 2024-05-24 Wei Wang , Yang Tan , Jingjing Liu , Bin Liang , Jianchun Cheng

We determine the antisymmetric current-current response for a pair of (type I) tilted Weyl cones with opposite chirality. We find that the dynamical chiral magnetic effect depends on the magnitude of the tilt and on the angle between the…

介观与纳米尺度物理 · 物理学 2017-10-04 E. C. I. van der Wurff , H. T. C. Stoof

Various novel transport phenomena in chiral systems result from the interplay of quantum anomalies with magnetic field and vorticity in high-energy heavy-ion collisions, and could survive the expansion of the fireball and be detected in…

核实验 · 物理学 2016-09-20 Gang Wang , Liwen Wen

Semiclassical chiral kinetic theories in the presence of electromagnetic fields as well as vorticity can be constructed by means of some different relativistic or nonrelativistic approaches. To cover the noninertial features of rotating…

高能物理 - 理论 · 物理学 2019-08-21 O. F. Dayi , E. Kilincarslan

It is shown that in all odd dimensional Chern-Simons theories states in which the torsion is non zero (but it can approach smoothly to zero outside suitable regions) do exist. Some possible observational effects related to neutrino…

广义相对论与量子宇宙学 · 物理学 2008-07-02 F. Canfora

Helicity of free massless Dirac fermions is a conserved, Lorentz-invariant quantity at the level of the classical equations of motion. For a generic ensemble consisting of particles and antiparticles, the helical and chiral charges are…

高能物理 - 理论 · 物理学 2023-03-23 Victor E. Ambrus , M. N. Chernodub

We provide a consistent theory of turbulence in the presence of shear and rotation. Starting from a quasi-linear equation for the fluctuating fields, we derive turbulence amplitude and turbulent transport coefficients, taking into account…

流体动力学 · 物理学 2009-11-13 Nicolas Leprovost , Eun-Jin Kim

We revisit the relation between black hole geometries and chiral transport. Integrating the anomaly equation in a black hole geometry allows to derive the chiral transport coefficients for the thermal gas far from the horizon. The key…

高能物理 - 理论 · 物理学 2023-06-21 Karl Landsteiner , Sergio Morales-Tejera , Pablo Saura-Bastida

In this note we consider non-relativistic rotating fermi liquid in the presence of Berry curvature. The behavior of the system is then almost the same as in external magnetic field. We argue that there appears an analogue of chiral vortical…

介观与纳米尺度物理 · 物理学 2015-06-04 V. P. Kirilin , Z. V. Khaidukov , A. V. Sadofyev

The flow of momentum and energy in a fluid is typically associated with dissipative transport coefficients: viscosity and thermal conductivity. Fluids that break certain symmetries such as mirror symmetry and time-reversal invariance can…

统计力学 · 物理学 2022-02-07 Michel Fruchart , Ming Han , Colin Scheibner , Vincenzo Vitelli