192 citations · 1.9k across the 43 of their papers we have counts for
43 papers
Strong-Field Physics in QED and QCD: From Fundamentals to Applications
Koichi Hattori, Kazunori Itakura, Sho Ozaki
We provide a pedagogical review article on fundamentals and applications of the quantum dynamics in strong electromagnetic fields in QED and QCD. The fundamentals include the basic…
Dirac Kondo effect under magnetic catalysis
Koichi Hattori, Daiki Suenaga, Kei Suzuki +1
We develop a mean-field theory of a novel Kondo effect emerging in systems without a Fermi surface, which instead emerges under strong magnetic fields. We determine the magnitude o…
Euler-Heisenberg Lagrangian under an axial gauge field
Patrick Copinger, Koichi Hattori, Di-Lun Yang
Augmentations to the Euler-Heisenberg Lagrangian (QED one-loop effective action in homogeneous electromagnetic fields) under a constant background axial gauge are examined. Two spe…
New developments in relativistic magnetohydrodynamics
Koichi Hattori, Masaru Hongo, Xu-Guang Huang
Relativistic magnetohydrodynamics (RMHD) provides an extremely useful description of the low-energy long-wavelength phenomena in a variety of physical systems from quark-gluon plas…
Gyrohydrodynamics: Relativistic spinful fluid with strong vorticity
Zheng Cao, Koichi Hattori, Masaru Hongo +2
We develop a relativistic (quasi-)hydrodynamic framework, dubbed the gyrohydrodynamics, to describe fluid dynamics of many-body systems with spin under strong vorticity based on en…
In-medium polarization tensor in strong magnetic fields (II): Axial Ward identity at finite temperature and density
Koichi Hattori, Kazunori Itakura
We investigate the axial Ward identity (AWI) for massive fermions in strong magnetic fields. The divergence of the axial-vector current is computed at finite temperature and/or den…
In-medium polarization tensor in strong magnetic fields (I): Magneto-birefringence at finite temperature and density
Koichi Hattori, Kazunori Itakura
We investigate in-medium polarization effects of the fermion and antifermion pairs at finite temperature and density in strong magnetic fields within the lowest Landau level approx…
Di-lepton production from a single photon in strong magnetic fields: Vacuum dichroism
Koichi Hattori, Hidetoshi Taya, Shinsuke Yoshida
We study di-lepton production from a single photon in the presence of a strong constant magnetic field. By the use of the Ritus-basis formalism, we analytically evaluate the photon…
Wigner functions and quantum kinetic theory of polarized photons
Koichi Hattori, Yoshimasa Hidaka, Naoki Yamamoto +1
We derive the Wigner functions of polarized photons in the Coulomb gauge with the expansion applied to quantum field theory, and identify side-jump effects for massless pho…
Revisiting relativistic magnetohydrodynamics from quantum electrodynamics
Masaru Hongo, Koichi Hattori
We provide a statistical mechanical derivation of relativistic magnetohydrodynamics on the basis of the -dimensional quantum electrodynamics; the system endowed with the mag…
Signatures of the vortical quark-gluon plasma in hadron yields
P Collaboration, Hidetoshi Taya, Aaron Park +10
We investigate the hadron production from the vortical quark-gluon plasma created in heavy-ion collisions. Based on the quark-coalescence and statistical hadronization models, we s…
Effective quantum kinetic theory for spin transport of fermions with collsional effects
Di-Lun Yang, Koichi Hattori, Yoshimasa Hidaka
We systematically derive the collision term for the axial kinetic theory, a quantum kinetic theory delineating the coupled dynamics of the vector/axial charges and spin transport c…
Note on all-order Landau-level structures of the Heisenberg-Euler effective actions for QED and QCD
Koichi Hattori, Kazunori Itakura, Sho Ozaki
We investigate the Landau-level structures encoded in the famous Heisenberg-Euler (HE) effective action in constant electromagnetic fields. We first discuss the HE effective action…
Emergent QCD Kondo effect in two-flavor color superconducting phase
Koichi Hattori, Xu-Guang Huang, Robert D. Pisarski
We show that effective coupling strengths between ungapped and gapped quarks in the two-flavor color superconducting (2SC) phase are renormalized by logarithmic quantum corrections…
Axial Kinetic Theory and Spin Transport for Fermions with Arbitrary Mass
Koichi Hattori, Yoshimasa Hidaka, Di-Lun Yang
We derive the quantum kinetic theory for fermions with arbitrary mass in a background electromagnetic field from the Wigner-function approach. Since spin of massive fermions is a d…
Meson deformation by magnetic fields in lattice QCD
Koichi Hattori, Arata Yamamoto
We study light meson properties in a magnetic field, focusing on a charged pion and a charged and polarized rho meson, in quenched lattice QCD. The gauge-invariant density-density…
Fate of spin polarization in a relativistic fluid: An entropy-current analysis
Koichi Hattori, Masaru Hongo, Xu-Guang Huang +2
We derive relativistic hydrodynamic equations with a dynamical spin degree of freedom on the basis of an entropy-current analysis. The first and second laws of local thermodynamics…
Transport phenomena with chiral fermions in strong magnetic fields
Koichi Hattori
I discuss the electrical conductivity, bulk viscosity, and heavy-quark diffusion coefficient in strong magnetic fields putting emphasis on consequences of the chirality conservatio…
MagnetoHydrodynamics with chiral anomaly: phases of collective excitations and instabilities
Koichi Hattori, Yuji Hirono, Ho-Ung Yee +1
We study the relativistic hydrodynamics with chiral anomaly and dynamical electromagnetic fields, namely Chiral MagnetoHydroDynamics (CMHD). We formulate CMHD as a low-energy effec…
Bulk Viscosity of Quark-Gluon Plasma in Strong Magnetic Fields
Koichi Hattori, Xu-Guang Huang, Dirk H. Rischke +1
We investigate the viscosities of the quark-gluon plasma in strong magnetic fields within the leading-log and lowest Landau level (LLL) approximations. We first show that the bulk…
Anatomy of the magnetic catalysis by renormalization-group method
Koichi Hattori, Kazunori Itakura, Sho Ozaki
We first examine the scaling argument for a renormalization-group (RG) analysis applied to a system subject to the dimensional reduction in strong magnetic fields, and discuss the…
Charge redistribution from novel magneto-vorticity coupling in anomalous hydrodynamics
Koichi Hattori, Yi Yin
We discuss new transport phenomena in the presence of both a strong magnetic field and a vortex field. Their interplay induces a charge distribution and a current along the magneti…
Gluon Spectrum in Quark-Gluon Plasma under Strong Magnetic Fields
Koichi Hattori, Daisuke Satow
We obtain the general expression of the gluon propagator at finite temperature () and in a magnetic field (), for the case that the four transverse tensor structures appear i…
Heavy-Quark Diffusion Dynamics in Quark-Gluon Plasma under Strong Magnetic Fields
Koichi Hattori, Kenji Fukushima, Ho-Ung Yee +1
We discuss heavy-quark dynamics in the quark-gluon plasma under a strong magnetic field induced by colliding nuclei. By the use of the diagrammatic resummation techniques for Hard…