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Related papers: Magnetic properties in the inhomogeneous chiral ph…

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Considering the density wave of scalar and pseudoscalar condensates, we study the response of quark matter to a weak external magnetic field. In an external magnetic field, the energy spectrum of the lowest Landau level becomes asymmetric…

High Energy Physics - Phenomenology · Physics 2015-10-21 Ryo Yoshiike , Kazuya Nishiyama , Tositaka Tatsumi

Considering the density wave of scalar and pseudoscalar condensates, we study the response of quark matter to a weak external magnetic field. In an external magnetic field, the energy spectrum of the lowest Landau level becomes asymmetric…

High Energy Physics - Phenomenology · Physics 2015-12-16 Ryo Yoshiike , Kazuya Nishiyama , Toshitaka Tatsumi

Magnetic properties of quark matter are discussed in the light of the observation of pulsars. Our works about spontaneous spin polarization and spin density wave are reviewed and their implications on compact-star phenomena are discussed.…

High Energy Physics - Phenomenology · Physics 2011-07-13 Toshitaka Tatsumi

Recent studies of our group are reviewed about the inhomogeneous chiral phase. Appearance of the inhomogeneous chiral phase is a new paradigm in the field of the QCD phase diagram. We consider the dual-chiral-density-wave in the presence of…

High Energy Physics - Phenomenology · Physics 2015-12-15 T. Tatsumi

Spontaneous magnetization and magnetic susceptibility originated from the pseudovector-type four-point interaction between quarks are calculated in quark matter with zero temperature and finite quark chemical potential by using the…

High Energy Physics - Phenomenology · Physics 2018-05-23 M. Morimoto , Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura

In the presence of a chemical potential, the effect of a magnetic field on chiral symmetry breaking goes beyond the well-known magnetic catalysis. Due to a subtle interplay with the chemical potential, the magnetic field may work not only…

High Energy Physics - Phenomenology · Physics 2015-06-11 Florian Preis , Anton Rebhan , Andreas Schmitt

Some magnetic aspects of QCD are discussed at finite density and temperature. Possibility of spontaneous magnetization is studied within Landau Fermi-liquid theory, and the important roles of the screening effects for gluon propagation are…

High Energy Physics - Phenomenology · Physics 2011-09-30 Toshitaka Tatsumi

We study the change of the effect of the current quark mass on the inhomogeneous chiral phase in the QCD phase diagram, and discuss the property of the phase transition by the generalized Ginzburg-Landau expansion. The strong external…

High Energy Physics - Phenomenology · Physics 2016-01-06 Ryo Yoshiike , Toshitaka Tatsumi

Recent development of inhomogeneous chiral phase in Kyoto group is briefly reviewed. First, the nesting effect of the Fermi surface is emphasized as a key mechanism leading to inhomogeneous chiral phase. After introduction of inhomogeneous…

High Energy Physics - Phenomenology · Physics 2018-02-14 Toshitaka Tatsumi

Inhomogeneous chiral phase is discussed in the presence of the magnetic field. A topological aspect is pointed out for the complex order parameter, in relation to the spectral asymmetry of the Dirac operator. It induces an anomalous baryon…

High Energy Physics - Phenomenology · Physics 2015-06-18 T. Tatsumi , K. Nishiyama , S. Karasawa

The chiral condensate, which is constant in vacuum, may become spatially modulated at moderately high densities where in the traditional picture of the QCD phase diagram a first-order chiral phase transition occurs. We review the current…

High Energy Physics - Phenomenology · Physics 2015-06-19 Michael Buballa , Stefano Carignano

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…

High Energy Physics - Phenomenology · Physics 2009-11-07 Nikita O. Agasian

We study the phase diagram of the Nambu-Jona-Lasinio model in the external magnetic field within the mean-field approximation, taking into account the inhomogeneous chiral condensate. It is shown that there appears a new type of the chiral…

Nuclear Theory · Physics 2015-08-19 Kazuya Nishiyama , Shintaro Karasawa , Toshitaka Tatsumi

Transport properties of dense quark matter are discussed in the strong magnetic field, B. B dependence as well as density dependence of the Hall conductivity is discussed in the inhomogeneous chiral phase. Anomalous Hall effect is intrinsic…

High Energy Physics - Phenomenology · Physics 2021-01-26 Toshitaka Tatsumi , Hiroaki Abuki

The inhomogeneous chiral phase is discussed in QCD at finite temperature and/or density. We study the phase diagram on the density-temperature plane by taking into account the effect of the current mass by a variational method. It is…

High Energy Physics - Phenomenology · Physics 2013-07-25 S. Karasawa , T. Tatsumi

The two-flavor quark-meson model is used as a low-energy effective model for QCD to study inhomogeneous chiral condensates at finite quark chemical potential $\mu$ in a constant magnetic background $B$. We determine the parameters of the…

High Energy Physics - Phenomenology · Physics 2017-10-24 Jens O. Andersen , Patrick Kneschke

We investigate the existence of inhomogeneous chiral phases in the quark-meson model with explicit chiral-symmetry breaking. We find that the inhomogeneous region shrinks with increasing pion masses but survives for the physical value of…

High Energy Physics - Phenomenology · Physics 2021-01-18 Michael Buballa , Stefano Carignano , Lennart Kurth

Several model calculations of the QCD phase structure at nonzero temperature and density suggest that in certain regions of the phase diagram inhomogeneous condensates are favored over homogeneous ones. In particular, in a two-flavor NJL…

High Energy Physics - Phenomenology · Physics 2020-06-04 Michael Buballa , Stefano Carignano

We study the evolution of magnetic fields coupled with chiral fermion asymmetry in the framework of chiral magnetohydrodynamics with zero initial total chirality. The initial magnetic field has a turbulent spectrum peaking at a certain…

High Energy Physics - Phenomenology · Physics 2023-10-02 Axel Brandenburg , Kohei Kamada , Kyohei Mukaida , Kai Schmitz , Jennifer Schober

The effect of anomalous magnetic moment of quarks on thermodynamic properties of the chiral condensate is studied, using of a two-flavor Nambu--Jona-Lasinio model at finite temperature $T$, chemical potential $\mu$, and in the presence of a…

High Energy Physics - Phenomenology · Physics 2016-01-20 Sh. Fayazbakhsh , N. Sadooghi
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