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相关论文: Chiral dynamics in a magnetic field from the funct…

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The Dirac oscillator in a homogenous magnetic field exhibits a chirality phase transition at a particular (critical) value of the magnetic field. Recently, this system has also been shown to be exactly solvable in the context of…

统计力学 · 物理学 2020-04-21 Antonia M. Frassino , Dimitri Marinelli , Orlando Panella , Pinaki Roy

Strong transient magnetic fields are generated in non-central relativistic heavy-ion collisions. These fields induce anisotropy within the strongly interacting medium that, in principle, can affect the thermodynamic properties of the…

高能物理 - 唯象学 · 物理学 2024-04-16 Kangkan Goswami , Dushmanta Sahu , Jayanta Dey , Raghunath Sahoo , Reinhard Stock

We investigate the QCD phase diagram for nonzero background magnetic fields using first-principles lattice simulations. At the physical point (in terms of quark masses), the thermodynamics of this system is controlled by two opposing…

高能物理 - 格点 · 物理学 2020-01-08 Gergely Endrodi , Matteo Giordano , Sandor D. Katz , Tamas G. Kovacs , Ferenc Pittler

We study the influence of strong external magnetic fields on gluonic and fermionic observables in the QCD vacuum at zero and nonzero temperatures, via lattice simulations with N_f=1+1+1 staggered quarks of physical masses. The gluonic…

高能物理 - 格点 · 物理学 2015-06-15 G. S. Bali , F. Bruckmann , G. Endrodi , F. Gruber , A. Schaefer

We study neutral and charged meson properties in magnetic field. Taking bosolization method in a two-flavor Nambu--Jona-Lasinio model, we derive effective meson Lagrangian density with minimal coupling to the magnetic field, by employing…

高能物理 - 唯象学 · 物理学 2018-02-28 Ziyue Wang , Pengfei Zhuang

We investigate magnetic field $(eB)$ dependence of constituent quark mass, the longitudinal and transverse pressure as well as the magnetization and magnetic susceptibility of strongly interacting quark matter. We employ the two-flavour…

高能物理 - 唯象学 · 物理学 2022-09-27 Nilanjan Chaudhuri , Snigdha Ghosh , Pradip Roy , Sourav Sarkar

The recently discovered inverse magnetic catalysis around the critical temperature indicates that some important information is missing in our current understanding of conventional chiral dynamics of QCD, which is enhanced by the magnetic…

高能物理 - 唯象学 · 物理学 2013-09-11 Jingyi Chao , Pengcheng Chu , Mei Huang

We investigate the combined finite-size and thermo-magnetic effects on the properties of the quark matter, in the context of the two-flavored Nambu--Jona-Lasinio model. In particular, by using the mean-field approximation and the Schwinger…

高能物理 - 唯象学 · 物理学 2023-07-18 Luciano M. Abreu , Emerson B. S. Corrêa , Elenilson S. Nery

We study inverse magnetic catalysis in the Nambu--Jona-Lasinio model beyond mean field approximation. The feed-down from mesons to quarks is embedded in an effective coupling constant at finite temperature and magnetic field. While the…

高能物理 - 唯象学 · 物理学 2016-06-22 Shijun Mao

We explore the restoration of chiral symmetry in the linear sigma model coupled to quarks under the influence of strong magnetic fields and finite temperature, incorporating screening effects through ring diagrams. While previous studies…

高能物理 - 唯象学 · 物理学 2025-10-06 Gabriela Fernández , Luis A. Hernández , Ana Mizher

We present a minimal model that provides a description of the magnetic and thermodynamic properties of \Eu. The model contains two exchange coupling parameters, which are calculated using Density Functional Theory, and a local easy axis…

其他凝聚态物理 · 物理学 2021-12-22 D. J. Garcia , V. Vildosola , A. A. Aligia , D. G. Franco , Pablo S. Cornaglia

An anisotropic thermal plasma phase of a strongly coupled gauge theory can be holographically modelled by an anisotropic AdS black hole. The temperature and anisotropy parameter of the AdS black hole background of interest [1] is specified…

高能物理 - 理论 · 物理学 2015-11-12 Mohammad Ali-Akbari , Seyed Farid Taghavi

In this work, we consider the effect of a constant anomalous magnetic moment (AMM) of quarks in the SU(2) Nambu--Jona-Lasinio model in the mean field approximation. To this end, we use the Schwinger {\it ansatz}, which represents a linear…

高能物理 - 唯象学 · 物理学 2022-08-24 Ricardo L. S. Farias , William R. Tavares , Rodrigo M. Nunes , Sidney S. Avancini

We show detailed derivation of the electric conductivity of quark matter at finite temperature and density under a magnetic field. We especially focus on the longitudinal electric conductivity along the magnetic direction and establish the…

高能物理 - 唯象学 · 物理学 2020-06-24 Kenji Fukushima , Yoshimasa Hidaka

We study the properties of the shear viscosity coefficient of quark matter near the chiral phase transition at finite temperature and chemical potential, and the kinds of high temperature, high density and strong magnetic field background.…

高能物理 - 唯象学 · 物理学 2023-12-29 Yi-Wei Qiu , Sheng-Qin Feng , Xue-Qiang Zhu

We derive a master equation that allows us to study non-equilibrium dynamics of a quantum antiferromagnet. By resorting to spin-wave theory, we obtain a closed analytic form for the magnon decay rates. These turn out to be closely related…

强关联电子 · 物理学 2015-03-19 Ángel Rivas , Miguel A. Martin-Delgado

We employ the functional renormalization group flow equations to investigate the phase structure of the two-flavor quark-meson model in the presence of a finite isospin chemical potential, incorporating interactions with omega and rho…

高能物理 - 唯象学 · 物理学 2025-06-10 Mohammed Osman , Defu Hou , Wentao Wang , Hui Zhang

Fluctuations are included in a chiral nucleon-meson model within the framework of the functional renormalization group. The model, with parameters fitted to reproduce the nuclear liquid-gas phase transition, is used to study the phase…

核理论 · 物理学 2015-06-16 Matthias Drews , Thomas Hell , Bertram Klein , Wolfram Weise

Using numerical simulations of lattice QCD with physical quark masses, we reveal the influence of magnetic-field background on chiral and deconfinement crossovers in finite-temperature QCD at low baryonic density. In the absence of…

高能物理 - 格点 · 物理学 2019-12-18 V. V. Braguta , M. N. Chernodub , A. Yu. Kotov , A. V. Molochkov , A. A. Nikolaev

We study thermodynamic properties of the QCD vacuum in a magnetic field below chiral phase transition. The hadronic phase free energy in a constant homogeneous magnetic field is calculated in the framework of the chiral perturbation theory…

高能物理 - 唯象学 · 物理学 2009-11-07 Nikita O. Agasian