262 citations · 4.2k across the 109 of their papers we have counts for
58 papers · 1 filter
HBT signature for clustered substructures probing primordial inhomogeneity in hot and dense QCD matter
Kenji Fukushima, Yoshimasa Hidaka, Katsuya Inoue +2
We propose a novel approach to probe primordial inhomogeneity in hot and dense matter which could be realized in non-central heavy-ion collisions. Although the Hanbury Brown and Tw…
Chiral anomaly in a (1+1)-dimensional Floquet system under high-frequency electric fields
Kenji Fukushima, Yoshimasa Hidaka, Takuya Shimazaki +1
We investigate the chiral anomaly in a Floquet system under a time-periodic electric field in (1+1) dimensions. Using the van~Vleck high-frequency expansion, we analytically calcul…
Angular Momentum Inheritance from the Schwinger Effect in (Chromo)electromagnetic Fields
Patrick Copinger, Yoshimasa Hidaka
The angular momentum of fermion pairs generated by the Schwinger effect is studied in homogeneous (chromo)electromagnetic fields, mimicking the early stages of a heavy-ion collisio…
Foundations and Applications of Quantum Kinetic Theory
Yoshimasa Hidaka, Shi Pu, Qun Wang +1
Many novel quantum phenomena emerge in non-equilibrium relativistic quantum matter under extreme conditions such as strong magnetic fields and rotations. The quantum kinetic theory…
Deconfining Phase Boundary of Rapidly Rotating Hot and Dense Matter and Analysis of Moment of Inertia
Yuki Fujimoto, Kenji Fukushima, Yoshimasa Hidaka
We discuss the effect of rapid rotation on the phase diagram of hadronic matter. The energy dispersion relation is shifted by an effective chemical potential induced by rotation. T…
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…
Effective models of a semi-quark gluon plasma
Yoshimasa Hidaka, Robert D. Pisarski
In the deconfined regime of a non-Abelian gauge theory at nonzero temperature, previously it was argued that if a (gauge invariant) source is added to generate nonzero holonomy, th…
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…
Resummation for the Field-theoretical Derivation of the Negative Magnetoresistance
Kenji Fukushima, Yoshimasa Hidaka
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…
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…
Electric conductivity of hot and dense quark matter in a magnetic field with Landau level resummation via kinetic equations
Kenji Fukushima, Yoshimasa Hidaka
We compute the electric conductivity of quark matter at finite temperature and quark chemical potential under a magnetic field beyond the Lowest Landau level approximat…
General formulae for dipole Wilson line correlators with the Color Glass Condensate
Kenji Fukushima, Yoshimasa Hidaka
We present general formulae to compute Wilson line correlators with the Color Glass Condensate described by the McLerran-Venugopalan model. We explicitly construct a complete and n…
Magnetic shift of the chemical freezeout and electric charge fluctuations
Kenji Fukushima, Yoshimasa Hidaka
We discuss the effect of a strong magnetic field on the chemical freezeout points in the ultrarelativistic heavy-ion collision. As a result of the inverse magnetic catalysis or the…
Phonons, pions and quasi-long-range order in spatially modulated chiral condensates
Yoshimasa Hidaka, Kazuhiko Kamikado, Takuya Kanazawa +1
We investigate low-energy fluctuations in the real kink crystal phase of dense quark matter within the Nambu--Jona-Lasinio model. The modulated chiral condensate breaks both the tr…
Dilepton and photon production in the presence of a nontrivial Polyakov loop
Yoshimasa Hidaka, Shu Lin, Robert D. Pisarski +1
We calculate the production of dileptons and photons in the presence of a nontrivial Polyakov loop in QCD. This is applicable to the semi-Quark Gluon Plasma (QGP), at temperatures…
Relativistic hydrodynamics from quantum field theory on the basis of the generalized Gibbs ensemble method
Tomoya Hayata, Yoshimasa Hidaka, Masaru Hongo +1
We derive relativistic hydrodynamics from quantum field theories by assuming that the density operator is given by a local Gibbs distribution at initial time. We decompose the ener…
Production and Elliptic Flow of Dileptons and Photons in the semi-Quark Gluon Plasma
C. Gale, Y. Hidaka, S. Jeon +6
We consider the thermal production of dileptons and photons at temperatures above the critical temperature in QCD. We use a model where color excitations are suppressed by a small…
Restricted phase-space approximation in real-time stochastic quantization
Ryoji Anzaki, Kenji Fukushima, Yoshimasa Hidaka +1
We perform and extend real-time numerical simulation of a low-dimensional scalar field theory or a quantum mechanical system using stochastic quantization. After a brief review of…
General conditions ensuring relativistic causality in an effective field theory based on the derivative expansion
Yuki Minami, Yoshimasa Hidaka
We discuss the general conditions ensuring relativistic causality in an effective theory based on the derivative expansion. Relativistic causality implies that the Green function v…
Sign problem and the chiral spiral on the finite-density lattice
Ryutaro Fukuda, Kenji Fukushima, Tomoya Hayata +1
We investigate the sign problem of the fermion determinant at finite baryon density in (1+1) dimensions, in which the ground state in the chiral limit should be free from the sign…
Temporal Chiral Spiral in Strong Magnetic Fields
Tomoya Hayata, Yoshimasa Hidaka, Arata Yamamoto
Vacuum properties of quantum chromodynamics in strong magnetic and finite electric fields are investigated. We show that when a uniform electric field is instantaneously applied in…
Neutrino spectral density at electroweak scale temperature
Kohtaroh Miura, Yoshimasa Hidaka, Daisuke Satow +1
Motivated by the scenario of resonant leptogenesis in which lepton number creation in the electroweak-scale is relevant, we investigate the spectral properties and possible collect…
Relativistic hydrodynamics from projection operator method
Yuki Minami, Yoshimasa Hidaka
We study relativistic hydrodynamics in the linear regime, based on Mori's projection operator method. In relativistic hydrodynamics, it is considered that ambiguity about the fluid…
Magnetic Catalysis vs Magnetic Inhibition
Kenji Fukushima, Yoshimasa Hidaka
We discuss the fate of chiral symmetry in an extremely strong magnetic field B. We investigate not only quark fluctuations but also neutral meson effects. The former would enhance…