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A conventional and rotating magnetoelectric effect of a half-filled spin-electron model on a doubly decorated square lattice is investigated by exact calculations. An importance of the electron hopping and spatial orientation of the…

统计力学 · 物理学 2020-08-31 Hana Čenčariková , Jozef Strečka

The non-central Cu + Au collisions can create strong out-of-plane magnetic fields and in-plane electric fields. By using the HIJING model, we study the general properties of the electromagnetic fields in Cu + Au collisions at 200 GeV and…

核理论 · 物理学 2015-02-17 Wei-Tian Deng , Xu-Guang Huang

The location of the critical end point (CEP) in the QCD phase diagram is determined under different scenarios. The effect of strangeness, isospin/charge asymmetry and an external magnetic field is investigated. The discussion is performed…

高能物理 - 唯象学 · 物理学 2014-03-27 Pedro Costa , Márcio Ferreira , Hubert Hansen , Débora P. Menezes , Constança Providência

In this work, I'm going to explore the pattern of chiral symmetry breaking and restoration in a solvable magnetic distribution within Nambu--Jona-Lasinio model. The special semi-localized static magnetic field can roughly simulate the…

核理论 · 物理学 2018-03-28 Gaoqing Cao

The phase structure of $d=3$ Nambu-Jona-Lasinio model in curved spacetime with magnetic field is investigated in the leading order of the $1/N$-expansion and in linear curvature approximation (an external magnetic field is treated exactly).…

高能物理 - 理论 · 物理学 2009-09-17 D. M. Gitman , S. D. Odintsov , Yu. I. Shil'nov

It is analyzed the effects of a hot and magnetized medium on the axion mass, self-coupling and topological susceptibility when in presence of an anisotropic external magnetic field along the $z$-direction, within the Nambu--Jona-Lasinio…

高能物理 - 唯象学 · 物理学 2019-11-26 Aritra Bandyopadhyay , Ricardo L. S. Farias , Bruno S. Lopes , Rudnei O. Ramos

We propose a novel method to search for the chiral magnetic effect (CME) in heavy ion collisions. We argue that the relative strength of the magnetic field (mainly from spectator protons and responsible for the CME) with respect to the…

核理论 · 物理学 2018-07-18 Hao-jie Xu , Jie Zhao , Xiaobao Wang , Hanlin Li , Zi-Wei Lin , Caiwan Shen , Fuqiang Wang

In this article we study a nonlocal Nambu--Jona-Lasinio (nNJL) model with a Gaussian regulator in presence of a uniform magnetic field. We take a mixed approach to the incorporation of temperature in the model, and consider aspects of both…

高能物理 - 唯象学 · 物理学 2017-03-08 F. Márquez , R. Zamora

By extending the $\Phi$-derivable approach in Nambu-Jona-Lasinio model to finite magnetic field we calculate the properties of pion, $\sigma$ and $\rho$ mesons in a magnetic field at finite temperature in not only the quark-antiquark bound…

高能物理 - 唯象学 · 物理学 2016-07-13 Rui Zhang , Wei-jie Fu , Yu-xin Liu

It is known that a constant magnetic field is a strong catalyst of dynamical chiral symmetry breaking in 2+1 dimensions, leading to generating dynamical fermion mass even at weakest attraction. In this work we investigate the collective…

高能物理 - 唯象学 · 物理学 2014-09-18 Gaoqing Cao , Lianyi He , Pengfei Zhuang

We investigate the effect of the inverse magnetic catalysis (IMC) on the charged $\rho$ meson condensation at finite temperature in the framework of the Nambu--Jona-Lasinio model, where mesons are calculated to the leading order of $1/N_c$…

高能物理 - 唯象学 · 物理学 2016-12-21 Hao Liu , Lang Yu , Maxim Chernodub , Mei Huang

In order to avoid unphysical causality-violating effects any rigidly rotating system must be bounded in directions transverse to the axis of rotation. We demonstrate that this requirement implies substantial dependence of properties of…

高能物理 - 理论 · 物理学 2017-05-24 M. N. Chernodub , Shinya Gongyo

We study the deconfinement phase transition in $ (2+1) $-dimensional holographic $ SU(N) $ gauge theories in the presence of an external magnetic field from the holographic hard and soft wall models. We obtain exact solutions for the…

高能物理 - 理论 · 物理学 2018-06-08 Diego M. Rodrigues , Eduardo Folco Capossoli , Henrique Boschi-Filho

The chiral magnetic effect (CME) refers to charge separation along a strong magnetic field of single-handed quarks, caused by interactions with topological gluon fields from QCD vacuum fluctuations. A major background of CME measurements in…

核实验 · 物理学 2018-05-08 Jie Zhao

We investigate the quark-meson model in a magnetic field using the exact functional renormalization group equation beyond the local-potential approximation. Our truncation of the effective action involves anisotropic wave function…

高能物理 - 唯象学 · 物理学 2014-03-14 Kazuhiko Kamikado , Takuya Kanazawa

We derive a nonlocal effective Lagrangian for the chiral magnetic effect. An electric field is generated by winding number fluctuations of the nonabelian gauge field in the presence of a strong magnetic field. We estimate the magnitude of…

高能物理 - 唯象学 · 物理学 2010-12-23 Berndt Müller , Andreas Schäfer

We perform a lattice study, in the quenched approximation, of dynamical mass generation in a system of relativistic (Dirac) fermions, coupled to an Abelian gauge field in (2+1)-dimensions, in the presence of an external (constant) magnetic…

高能物理 - 格点 · 物理学 2009-10-31 K. Farakos , G. Koutsoumbas , N. E. Mavromatos

In this work we examine possible effects of an external magnetic field in the strongly interacting matter phase diagram. The study is performed using the Polyakov-Nambu-Jona-Lasinio model. Possible consequences of the inverse magnetic…

高能物理 - 唯象学 · 物理学 2022-09-21 Pedro Costa , Márcio Ferreira , Constança Providência

The effect of rotation on the formation of the magnetic dual chiral density wave (\MD) in a dense and magnetized cold quark matter is studied. This phase is supposed to exist in the extreme conditions prevailing, e.g., in a neutron star.…

核理论 · 物理学 2023-10-04 H. Mortazavi Ghalati , N. Sadooghi

The phase diagram of strong interaction matter is analyzed utilizing the Nambu--Jona-Lasinio model. Special emphasis is placed on its dependence on an external magnetic field and isospin chemical potential. Using flavor mixing induced by…

高能物理 - 唯象学 · 物理学 2017-03-22 Stefan Rechenberger