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In a fluid with vorticity and acceleration, an axial current arises in the third order of gradient expansion, called the kinematical vortical effect (KVE). While existing in the absence of gravitational fields, it is nevertheless associated…

高能物理 - 理论 · 物理学 2023-04-05 Georgy Yu. Prokhorov , Oleg V. Teryaev , Valentin I. Zakharov

The transport properties of massless fermions in $3+1$ spacetime dimension have been in the focus of recent theoretical and experimental research. New transport properties appear as consequences of chiral anomalies. The most prominent is…

介观与纳米尺度物理 · 物理学 2018-05-09 Karl Landsteiner , Yan Liu

We reinvestigate the classic example of the chiral anomaly in (1+1) dimensional spacetime. By reviewing the derivation of charge conservation using the semiclassical Boltzmann equation, we show that chiral anomalies could emerge in (1+1)…

高能物理 - 理论 · 物理学 2024-12-31 Wei-Han Hsiao , Chiao-Hsuan Wang

Imposing the conservation equation of the vector current for a fermion of spin $\frac{1}{2}$ at the quantum level, a gauge anomaly for the fermion coupling with non-Abelian vector and axial--vector fields in six--dimensional curved space is…

高能物理 - 理论 · 物理学 2019-12-06 Satoshi Yajima , Kohei Eguchi , Makoto Fukuda , Tomonori Oka

Chiral anomaly implies the existence of non-dissipative transport phenomena, such as the chiral magnetic effect. At second order in the derivative expansion, novel quantum transport phenomena emerge. In this paper, we focus on the anomalous…

高能物理 - 唯象学 · 物理学 2022-11-23 Matteo Buzzegoli , Dmitri E. Kharzeev , Yu-Chen Liu , Shuzhe Shi , Sergei A. Voloshin , Ho-Ung Yee

Weyl semimetals are materials where electrons behave effectively as a kind of massless relativistic particles known asWeyl fermions. These particles occur in two flavours, or chiralities, and are subject to quantum anomalies, the breaking…

We compute, in the framework of the fluid/gravity correspondence, the transport coefficients of a relativistic fluid affected by chiral and gauge-gravitational anomalies, including external electromagnetic fields. The computation is…

高能物理 - 理论 · 物理学 2015-06-15 Eugenio Megias , Francisco Pena-Benitez

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

Weyl semimetals are predicted to realize the three-dimensional axial anomaly first discussed in particle physics. The anomaly leads to unusual transport phenomena such as the chiral magnetic effect in which an applied magnetic field induces…

介观与纳米尺度物理 · 物理学 2016-11-23 Edwin Barnes , J. J. Heremans , Djordje Minic

We investigate novel transport phenomena in a chiral fluid originated from an interplay between a vorticity and strong magnetic field, which induces a redistribution of vector charges in the system and an axial current along the magnetic…

高能物理 - 理论 · 物理学 2016-10-12 Koichi Hattori , Yi Yin

We derive the chiral kinetic theory under the presence of a gravitational Riemann curvature. It is well-known that in the chiral kinetic theory there inevitably appears a redundant ambiguous vector corresponding to the choice of the Lorentz…

高能物理 - 理论 · 物理学 2021-05-06 Tomoya Hayata , Yoshimasa Hidaka , Kazuya Mameda

There is evidence for existence of massless Dirac quasi-particles in graphene, which satisfy Dirac equation in (1+2) dimensions near the so called Dirac points which lie at the corners at the graphene's brilluoin zone. It is shown that…

介观与纳米尺度物理 · 物理学 2011-05-31 Riazuddin

Momentum transport is anomalous in chiral $p+ip$ superfluids and superconductors in the presence of textures and superflow. Using the gradient expansion of the semi-classical approximation, we show how gauge and Galilean symmetries induce…

超导电性 · 物理学 2020-04-06 Jaakko Nissinen

Quantum anomalies give rise to new transport phenomena. In particular a magnetic field can induce an anomalous current via the chiral magnetic effect and a vortex in the relativistic fluid can also induce a current via the chiral vortical…

高能物理 - 唯象学 · 物理学 2011-08-01 Karl Landsteiner , Eugenio Megias , Francisco Pena-Benitez

We compute one of the second order transport coefficients arising from the chiral anomaly in a high temperature weakly coupled regime of quark-gluon plasma. This transport coefficient is responsible for the CP-odd current that is…

高能物理 - 唯象学 · 物理学 2015-07-29 Amadeo Jimenez-Alba , Ho-Ung Yee

Nonlinear transport phenomena induced by the chiral anomaly are explored within a 4D field theory defined holographically as $U(1)_V\times U(1)_A$ Maxwell-Chern-Simons theory in Schwarzschild-$AdS_5$. First, in presence of external…

高能物理 - 理论 · 物理学 2019-03-19 Yanyan Bu , Tuna Demircik , Michael Lublinsky

The axial anomaly in a quasi-one-dimensional (quasi-1D) chiral p-wave superfluid model, which has a epsilon_{x} p_{x}+i epsilon_{y} p_{y}-wave gap in 2D is studied. The anomaly causes an accumulation of the quasiparticle and a quantized…

超导电性 · 物理学 2007-05-23 J. Goryo

The source-free Maxwell action is invariant under electric-magnetic duality rotations in arbitrary spacetimes. This leads to a conserved classical Noether charge. We show that this conservation law is broken at the quantum level in presence…

广义相对论与量子宇宙学 · 物理学 2017-03-22 I. Agullo , A. del Rio , J. Navarro-Salas

Gravitational axial and chiral anomalies in a noncommutative space are examined through the explicit perturbative computation of one-loop diagrams in various dimensions. The analysis depend on how gravity is coupled to noncommutative matter…

高能物理 - 理论 · 物理学 2007-05-23 Sendic Estrada-Jimenez , Hugo Garcia-Compean , Carlos Soto-Campos

Axial anomalies give rise to interesting new transport phenomena such as the "chiral magnetic effect". We discuss how the associated transport coefficients can be studied via Kubo formulas at weak and strong coupling, the latter via gauge…

高能物理 - 唯象学 · 物理学 2011-10-18 Karl Landsteiner , Eugenio Megias , Francisco Pena-Benitez
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