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In a previous work a model was proposed for the phase transitions of crystals with localized magnetic moments which at low temperature have a "conical" arrangement that at higher T transforms into a more symmetrical structure (depending on…

统计力学 · 物理学 2009-11-13 Vittorio Massidda

In this talk attention is drawn to thermal properties due to the addition of eight quark interactions in the standard $SU(3)\times SU(3)$ chiral Nambu-Jona-Lasinio model (NJL) with 't Hooft interaction (NJLH). The schematic SU(3) flavor…

高能物理 - 唯象学 · 物理学 2009-10-14 B. Hiller , A. A. Osipov , J. Moreira , A. H. Blin

With the two flavor Nambu-Jona-Lasinio (NJL) model we carry out a phenomenological study on the chiral phase structure, mesonic properties and transport properties in a momentum-space anisotropic quark matter. To calculate transport…

高能物理 - 唯象学 · 物理学 2022-01-13 He-Xia Zhang , Yu-Xin Xiao , Jin-Wen Kang , Ben-Wei Zhang

Anomalous magnetic moment (AMM) of quarks in presence of an external magnetic field has been explored using a nonlocal Nambu\textemdash Jona-Lasinio (NJL) model. Various strengths of AMM differing in orders of magnitude are used in the…

高能物理 - 唯象学 · 物理学 2023-02-03 Chowdhury Aminul Islam , Mahammad Sabir Ali , Mei Huang

Hot and dense quark matter with isospin and chiral imbalances is investigated in the framework of the (3+1)-dimensional Nambu--Jona-Lasinio model (NJL) in the large-$N_c$ limit ($N_c$ is the number of quark colors). Its phase structure is…

高能物理 - 唯象学 · 物理学 2019-03-27 T. G. Khunjua , K. G. Klimenko , R. N. Zhokhov

The possible different phases of cold quark matter in the presence of a finite magnetic field and chemical potential are obtained within the SU(3) NJL model for two parameter sets often used in the literature. Although the general pattern…

高能物理 - 唯象学 · 物理学 2014-08-20 A. G. Grunfeld , D. P. Menezes , M. B. Pinto , N. N. Scoccola

A possibility of formation of static dual scalar and pseudoscalar density wave condensates in dense quark matter is considered for the Nambu--Jona-Lasinio model in an external magnetic field. Within a mean-field approximation, the effective…

高能物理 - 唯象学 · 物理学 2014-11-21 I. E. Frolov , V. Ch. Zhukovsky , K. G. Klimenko

A general research on chiral symmetry restoring phase transitions at zero temperature and finite chemical potentials under electrical neutrality condition has been conducted in a Nambu-Jona-Lasinio model to describe two-flavor normal quark…

高能物理 - 唯象学 · 物理学 2009-03-19 Xiao-Ming Wang , Bang-Rong Zhou

It is believed at present that the chiral transition changes from a smooth crossover to a first-order transition at low temperatures and high densities. Such regime is commonly analyzed using effective models since first principle…

核理论 · 物理学 2025-11-20 R. M. Aguirre

Effects of a uniform (electro-) magnetic background field are investigated in the two-flavor nonlocal Polyakov-loop extended Nambu--Jona-Lasinio (PNJL) model. Temperature-dependences of the chiral order-parameter and the Polyakov-loop are…

高能物理 - 唯象学 · 物理学 2011-07-05 Kouji Kashiwa

In this study, we investigate the Nambu--Jona-Lasinio (NJL) model at finite temperature and finite density in an external magnetic field using the functional renormalization group. We investigate the dependence of the position of the…

高能物理 - 唯象学 · 物理学 2016-01-18 Ken-Ichi Aoki , Hidenari Uoi , Masatoshi Yamada

In the present work we are interested in understanding various properties of quark matter subject to strong magnetic fields described by the Nambu-Jona-Lasinio model with Polyakov loop. We start by analysing the differences arising from two…

In this review article, we give overview on the extended chiral quark models. In particular, how these models are extended to include the higher-order interactions, quantized fields, logarithmic potential and the effect of these…

核理论 · 物理学 2017-07-26 M. Abu-Shady

In high density quark matter under a strong external magnetic field, possible phases are investigated by using the two-flavor Nambu-Jona-Lasinio model with tensor-type four-point interaction between quarks, as well as the axial-vector-type…

高能物理 - 唯象学 · 物理学 2017-02-01 Yasuhiko Tsue , Joao da Providencia , Constanca Providencia , Masatoshi Yamamura , Henrik Bohr

To describe the chiral magnetic effect, the chiral chemical potential $\mu_5$ is introduced to imitate the impact of topological charge changing transitions in the quark-gluon plasma under the influence of an external magnetic field. We…

高能物理 - 唯象学 · 物理学 2022-10-07 Alexander M. Czajka , Zhong-Bo Kang , Yuxuan Tee , Fanyi Zhao

We have investigated shear viscosity of quark matter in presence of a strong uniform magnetic field background where Nambu-Jona-Lasinio model has been considered to describe the magneto-thermodynamical properties of the medium. In presence…

高能物理 - 唯象学 · 物理学 2019-09-04 Sabyasachi Ghosh , Bhaswar Chatterjee , Payal Mohanty , Arghya Mukharjee , Hiranmaya Mishra

In this work we analyze the finite-volume and magnetic effects on the phase structure of a generalized version of Nambu--Jona-Lasinio model with three quark flavors. By making use of mean-field approximation and Schwinger's proper-time…

高能物理 - 唯象学 · 物理学 2019-04-09 L. M. Abreu , E. B. S. Corrêa , C. A. Linhares , A. P. C. Malbouisson

We study the phase diagram for strongly interacting matter using the 't Hooft determinant extended Nambu--Jona-Lasinio model with a Polyakov loop in the light and strange quark sectors (\emph{up}, \emph{down} and \emph{strange}) focusing on…

高能物理 - 唯象学 · 物理学 2021-04-13 João Moreira , Pedro Costa , Tulio E. Restrepo

The QCD phase diagram at zero chemical potential and finite temperature subject to an external magnetic field is studied within the three flavor Nambu--Jona-Lasinio (NJL) model and the NJL model with the Polyakov loop (PNJL). A scalar…

高能物理 - 唯象学 · 物理学 2014-06-25 M. Ferreira , P. Costa , O. Lourenço , T. Frederico , C. Providência

The decrease of the chiral pseudocritical temperature $T_{\mathrm{pc}}$ with an applied strong magnetic field has been extensively investigated by various QCD low-energy effective models and lattice QCD at physical point. We find that this…

高能物理 - 唯象学 · 物理学 2025-05-26 Yuanyuan Wang , Mamiya Kawaguchi , Shinya Matsuzaki , Akio Tomiya