192 citations · 956 across the 29 of their papers we have counts for
15 papers · 1 filter
Magnetic Symmetries and the Structure of Correlation Functions in Quantum Field Theory
Masaru Hongo, Kentaro Nishimura
Quantum field theories in the presence of a static and uniform external magnetic field possess two characteristic spatial symmetries: magnetic translations and magnetic rotation. W…
Schwinger-Keldysh effective action for hydrodynamics with approximate symmetries
Masaru Hongo, Noriyuki Sogabe, Mikhail A. Stephanov +1
We study the hydrodynamic theories with approximate symmetries in the recently developed effective action approach on the Schwinger-Keldysh (SK) contour. We employ the method of sp…
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…
Spin relaxation rate for heavy quarks in weakly coupled QCD plasma
Masaru Hongo, Xu-Guang Huang, Matthias Kaminski +2
We compute the relaxation rate of the spin density of heavy quarks in a perturbative QCD plasma to leading-log order in the coupling constant . The spin relaxation rate in…
Anomaly-induced edge currents in hydrodynamics with parity anomaly
Takuya Furusawa, Masaru Hongo
In this paper, we discuss relativistic hydrodynamics for a massless Dirac fermion in dimensions, which has the parity anomaly -- a global 't Hooft anomaly between $\mathrm{…
Effective field theory of fluctuating wall in open systems: from a kink in Josephson junction to general domain wall
Keisuke Fujii, Masaru Hongo
We investigate macroscopic behaviors of fluctuating domain walls in nonequilibrium open systems with the help of the effective field theory based on symmetry. Since the domain wall…
Relativistic spin hydrodynamics with torsion and linear response theory for spin relaxation
Masaru Hongo, Xu-Guang Huang, Matthias Kaminski +2
Using the second law of local thermodynamics and the first-order Palatini formalism, we formulate relativistic spin hydrodynamics for quantum field theories with Dirac fermions, su…
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…
Effective Lagrangian for Nambu-Goldstone modes in nonequilibrium open systems
Masaru Hongo, Suro Kim, Toshifumi Noumi +1
We develop the effective field theory of diffusive Nambu-Goldstone (NG) modes associated with spontaneous internal symmetry breaking taking place in nonequilibrium open systems. Th…
Anomaly-induced transport phenomena from the imaginary-time formalism
Masaru Hongo, Yoshimasa Hidaka
A derivation of the anomaly-induced transport phenomena---the chiral magnetic/vortical effect---is revisited based on the imaginary-time formalism of quantum field theory. Consider…
Phase structure of the twisted flag sigma model on
Masaru Hongo, Tatsuhiro Misumi, Yuya Tanizaki
We investigate the phase structure of the compactified -dimensional nonlinear flag sigma model with respect to two -terms. Based on the circle compactification…
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…
Effective field theory of time-translational symmetry breaking in nonequilibrium open system
Masaru Hongo, Suro Kim, Toshifumi Noumi +1
We develop the effective field theoretical (EFT) approach to time-translational symmetry breaking of nonequilibrium open systems based on the Schwinger-Keldysh formalism. In the Sc…
Path-integral formula for local thermal equilibrium
Masaru Hongo
We develop a complete path-integral formulation of relativistic quantum fields in local thermal equilibrium, which brings about the emergence of thermally induced curved spacetime.…