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相关论文: Bulk angular momentum and Hall viscosity in chiral…

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Antiferromagnetic Weyl semimetals with spin chirality offer excellent platforms to address the Berry phase physics, which manifests prominently in several of their electro-optical and electro-magnetic responses including as a large…

材料科学 · 物理学 2023-07-18 Vinay Sharma , Rajeev Nepal , Ramesh C. Budhani

We present a quantized non-Abelian Berry phase for time reversal invariant systems such as quantum spin Hall effect. Ordinary Berry phase is defined by an integral of Berry's gauge potential along a loop (an integral of the Chern-Simons…

介观与纳米尺度物理 · 物理学 2010-02-03 T. Fukui , T. Fujiwara

Since the discovery of the anomalous Hall effect (AHE), the anomalous Hall conductivity (AHC) has been thought to be zero when there is no net magnetization. However, the recently found relation between the intrinsic AHE and the Berry…

We study the magnetoconductivity induced by the axial anomaly via the chiral magnetic effect in strongly coupled holographic models. An important ingredient in our models is that the axial charge is non-conserved beyond the axial anomaly.…

高能物理 - 理论 · 物理学 2015-05-05 Amadeo Jimenez-Alba , Karl Landsteiner , Yan Liu , Ya-Wen Sun

Quantum anomalous Hall (QAH) insulator is a topological phase which exhibits chiral edge states in the absence of magnetic field. The celebrated Haldane model is the first example of QAH effect, but difficult to realize. Here, we predict…

材料科学 · 物理学 2017-03-24 H. P. Wang , Wei Luo , H. J. Xiang

Nonzero mean value of phonon angular momentum (PAM) in chiral materials can be generated when a temperature gradient is applied. We find that both diagonal and off-diagonal terms of PAM contribute to mean PAM by using the Kubo formula where…

介观与纳米尺度物理 · 物理学 2023-04-05 Jinxin Zhong , Hong Sun , Yang Pan , Zhiguo Wang , Xiangfan Xu , Lifa Zhang , Jun Zhou

The cosmic microwave background (CMB) temperature autocorrelations, induced by a magnetized adiabatic mode of curvature inhomogeneities, are computed with semi-analytical methods. As suggested by the latest CMB data, a nearly…

天体物理学 · 物理学 2008-11-26 Massimo Giovannini

We study finite temperature transport in the Luttinger-Abrikosov-Beneslavskii phase -- an interacting, scale invariant, non-Fermi liquid phase found in quadratic semimetals. We develop a kinetic equation formalism to describe the d.c.…

强关联电子 · 物理学 2015-10-19 Philipp T. Dumitrescu

We study the Hall viscosity of the quark gluon plasma (QGP) created in non-central heavy-ion collisions. In the presence of a strong magnetic field or vorticity, rotational symmetry is broken from O(3) to O(2), allowing for two independent…

核理论 · 物理学 2026-04-01 Sukrut Mondkar , Giorgio Torrieri , Matthias Kaminski , René Meyer

We study chiral symmetry restoration with increasing temperature and density in gauge theories subject to mutually perpendicular electric and magnetic fields using holography. We determine the chiral symmetry breaking phase structure of the…

高能物理 - 理论 · 物理学 2015-05-28 Nick Evans , Keun-Young Kim , Jonathan P. Shock

The competition between d-wave superconductivity (SC) and antiferromagnetism (AF) in the high-Tc cuprates is investigated by studying the hole- and electron-doped two-dimensional Hubbard model with a recently proposed variational…

超导电性 · 物理学 2007-05-23 M. Aichhorn , E. Arrigoni , M. Potthoff , W. Hanke

We present results from the first global 3D MHD simulations of accretion disks in Cataclysmic Variable (CV) systems in order to investigate the relative importance of angular momentum transport via turbulence driven by the magnetorotational…

太阳与恒星天体物理 · 物理学 2016-06-01 Wenhua Ju , James M. Stone , Zhaohuan Zhu

The effects of finite magnetization and electric polarization on dissipative and non-dissipative (anomalous) transport coefficients of a chiral fluid are studied. First, using the second law of thermodynamics as well as Onsager's time…

高能物理 - 理论 · 物理学 2017-04-28 N. Sadooghi , S. M. A. Tabatabaee

By measuring the de Hass-van Alphen effect and calculating the electronic band structure, we have investigated the bulk Fermi surface of the BaSn3 superconductor with a transition temperature of ~ 4.4 K. Striking de Haas-van Alphen (dHvA)…

强关联电子 · 物理学 2020-01-24 Gaoning Zhang , Xianbiao Shi , Xiaolei Liu , Wei Xia , Hao Su , Leiming Chen , Xia Wang , Na Yu , Zhiqiang Zou , Weiwei Zhao , Yanfeng Guo

We study the magneto response with non-conserved currents in Holography. Non-conserved currents are dual to massive vector fields in AdS. We introduce the mass in a gauge invariant way via the St\"uckelberg mechanism. In particular we find…

高能物理 - 理论 · 物理学 2014-12-17 Amadeo Jimenez-Alba , Karl Landsteiner , Luis Melgar

We prove both analytically and numerically that the total angular momentum of a molecular system undergoing adiabatic Born-Oppenheimer dynamics is conserved only when pseudo-magnetic Berry forces are taken into account. This finding sheds…

In the quantum anomalous Hall effect, quantized Hall resistance and vanishing longitudinal resistivity are predicted to result from the presence of dissipationless, chiral edge states and an insulating 2D bulk, without requiring an external…

介观与纳米尺度物理 · 物理学 2018-09-12 E. J. Fox , I. T. Rosen , Yanfei Yang , George R. Jones , Randolph E. Elmquist , Xufeng Kou , Lei Pan , Kang L. Wang , D. Goldhaber-Gordon

We study the non-equilibrium properties of a dynamical fluid composed of quasi-particles whose mass is temperature and charge chemical potential dependent, in kinetic theory under the relaxation time approximation. In particular we…

高能物理 - 唯象学 · 物理学 2012-10-31 Waseem Bashir , Saeed Uddin , Jan Shabir Ahmad

Motivated by a recent proposal on the possibility of observing a monopole in the band structure, and by an increasing interest on the role of Berry phase in spintronics, we studied the adiabatic motion of a wave packet of Bloch functions,…

介观与纳米尺度物理 · 物理学 2010-04-05 Ryuichi Shindou , Ken-Ichiro Imura

We study how the intrinsic anomalous Hall conductivity is modified in two-dimensional crystals with broken time-reversal symmetry due to weak inhomogeneity of the applied electric field. Focusing on a clean noninteracting two-band system…

介观与纳米尺度物理 · 物理学 2021-04-13 Vladyslav Kozii , Alexander Avdoshkin , Shudan Zhong , Joel E. Moore