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We study the current of chiral charge density in a Dirac semimetal with two Dirac points in momentum space, subjected to an externally applied time dependent electric field and in the presence of a magnetic field. Based on the kinetic…

介观与纳米尺度物理 · 物理学 2018-12-06 Alexander A. Zyuzin , M. Silaev , Vladimir A. Zyuzin

The presence of a strong magnetic background can modify the nature and the dynamics of the chiral phase transition at finite temperature: for high enough magnetic fields, comparable to the ones expected to be created in noncentral…

高能物理 - 唯象学 · 物理学 2009-11-13 Eduardo S. Fraga , Ana Júlia Mizher

We discuss the various physics aspects of hypothetical, coherent excitations of the pion field caused by spontaneously generated local distortions of the chiral order parameter. Such distortions, which may occur in the expansion of a hot…

核理论 · 物理学 2007-05-23 Berndt Muller

The emergence of the Chiral Magnetic Effect (CME) and the related anomalous current is investigated using the real time Dirac-Heisenberg-Wigner formalism. This method is widely used for describing strong field physics and QED vacuum…

高能物理 - 唯象学 · 物理学 2018-08-08 Dániel Berényi , Péter Lévai

In this paper the emergence of the Chiral Magnetic Effect (CME) and the related anomalous current is investigated using the real time Dirac-Heisenberg-Wigner formalism. This method is widely used for describing strong field physics and QED…

高能物理 - 唯象学 · 物理学 2018-05-14 Dániel Berényi , Péter Lévai

The (3+1)D relativistic hydrodynamics with chiral anomaly is used to obtain a quantitative description of the chiral magnetic effect (CME) in heavy-ion collisions. We find that the charge-dependent hadron azimuthal correlations are…

高能物理 - 唯象学 · 物理学 2015-08-28 Yuji Hirono , Tetsufumi Hirano , Dmitri E. Kharzeev

We consider the effective action for massive two-dimensional QED in flat Euclidean space-time in the background of a general square-integrable magnetic field with finite range. It is shown that its small mass limit is controlled by the…

高能物理 - 理论 · 物理学 2009-10-31 M. P. Fry

We first compare different approaches to estimates of the magnitude of the chiral magnetic effect in relativistic heavy ion collisions and show that their main difference lies in the assumptions on the length of persistence of the magnetic…

高能物理 - 唯象学 · 物理学 2018-11-07 Berndt Müller , Andreas Schäfer

The diquark is a strongly correlated quark pair that plays an important role in hadrons and hadronic matter. In order to treat the diquak as a building block of hadrons, we formulate an effective theory of diquark fields with $SU(3)_R…

高能物理 - 唯象学 · 物理学 2020-04-01 Masayasu Harada , Yan-Rui Liu , Makoto Oka , Kei Suzuki

A new type of anomalous Hall effect is shown to arise from the interaction of conduction electrons with dipolar spin waves in ferromagnets. This effect exists even in homogeneous ferromagnets without relativistic spin-orbit coupling. The…

材料科学 · 物理学 2015-10-14 Kei Yamamoto , Koji Sato , Eiji Saitoh , Hiroshi Kohno

The anomalous Hall effect has been indispensable in our understanding of numerous magnetic phenomena. This concerns both ferromagnetic materials, as well as diverse classes of antiferromagnets, where in addition to the anomalous and crystal…

介观与纳米尺度物理 · 物理学 2021-09-08 J. Kipp , K. Samanta , F. R. Lux , M. Merte , J. -P. Hanke , M. Redies , F. Freimuth , S. Blügel , M. Ležaić , Y. Mokrousov

Magneto conductivities in Weyl semimetals (WSM) in presence of small fields are studied using quasi-classical Boltzmann transport equations (BTE). Following such formalism here we consider irradiation via circularly polarized light on a…

强关联电子 · 物理学 2022-10-11 Rounak Sen , Satyaki Kar

We argue that the presence of a very strong magnetic field in the chirally broken phase induces inhomogeneous expectation values, of a spiral nature along the magnetic field axis, for the currents of charge and chirality, when there is…

高能物理 - 唯象学 · 物理学 2010-11-11 Gokce Basar , Gerald V. Dunne , Dmitri E. Kharzeev

Vacuum properties of quantum chromodynamics in strong magnetic and finite electric fields are investigated. We show that when a uniform electric field is instantaneously applied in the parallel direction to a strong magnetic field, it…

高能物理 - 唯象学 · 物理学 2014-04-23 Tomoya Hayata , Yoshimasa Hidaka , Arata Yamamoto

In the standard model of particle physics, the chiral anomaly can occur in relativistic plasmas and plays a role in the early Universe, protoneutron stars, heavy-ion collisions, and quantum materials. It gives rise to a magnetic instability…

等离子体物理 · 物理学 2024-02-07 Jennifer Schober , Igor Rogachevskii , Axel Brandenburg

We calculate the electron self-energy in a magnetized QED plasma to the leading perturbative order in the coupling constant and to the linear order in an external magnetic field. We find that the chiral asymmetry of the normal ground state…

高能物理 - 唯象学 · 物理学 2013-07-31 E. V. Gorbar , V. A. Miransky , I. A. Shovkovy , Xinyang Wang

Large magnetic fields exist in magnetars and are produced in off-central heavy-ion collisions. For the latter, field strengths are estimated to be comparable to strong interaction scales. This fact has motivated many studies of QCD physics…

高能物理 - 唯象学 · 物理学 2024-08-20 Prabal Adhikari , Brian C. Tiburzi

Relativistic heavy ion collisions can generate metastable domains in which the chiral condensate is disoriented. Nucleus-sized domains can yield measurable fluctuations in the number of neutral and charged pions. We propose a scenario in…

高能物理 - 唯象学 · 物理学 2009-10-22 Sean Gavin , Berndt Mueller

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

We show that the chiral-symmetry-broken phase of massless QED in the presence of a magnetic field exhibits strong paraelectricity. A large anisotropic electric susceptibility develops in the infrared region, where most of the fermions are…

高能物理 - 唯象学 · 物理学 2011-08-17 Efrain J. Ferrer , Vivian de la Incera , Angel Sanchez