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Magnetic enhancement of baryon confinement modeled via a deformed Skyrmion
Shi Chen, Kenji Fukushima, Zebin Qiu
We discuss the baryon properties under a strong magnetic field. We adopt the Skyrme model and calculate the magnetic field dependence of the mass and the pressure distribution in t…
Exploring the -vacuum structure in the functional renormalization group approach
Kenji Fukushima, Takuya Shimazaki, Yuya Tanizaki
We investigate the -vacuum structure and the 't Hooft anomaly at in a simple quantum mechanical system on to scrutinize the applicability of the functional renormali…
Classification of Magnetic Vortices by Angular Momentum Conservation
Kenji Fukushima, Yoshimasa Hidaka, Ho-Ung Yee
Superfluid vortices are quantum excitations carrying quantized amount of orbital angular momentum in a phase where global symmetry is spontaneously broken. We address a question of…
Spin Hydrodynamics and Symmetric Energy-Momentum Tensors -- A current induced by the spin vorticity --
Kenji Fukushima, Shi Pu
We discuss a puzzle in relativistic spin hydrodynamics; in the previous formulation the spin source from the antisymmetric part of the canonical energy-momentum tensor (EMT) is cru…
Deconfinement and CP-breaking at in Yang-Mills theories and a novel phase for SU(2)
Shi Chen, Kenji Fukushima, Hiromichi Nishimura +1
We discuss the deconfinement and the CP-breaking phase transitions at in Yang-Mills theories. The 't Hooft anomaly matching prohibits the confined phase with CP symmetry and…
Anomalous Casimir effect in axion electrodynamics
Kenji Fukushima, Shota Imaki, Zebin Qiu
We study the Casimir effect in axion electrodynamics. A finite -term affects the energy dispersion relation of photon if is time and/or space dependent. We focus on a specia…
Axial Ward identity and the Schwinger mechanism -- Applications to the real-time chiral magnetic effect and condensates
Patrick Copinger, Kenji Fukushima, Shi Pu
We elucidate chirality production under parity breaking constant electromagnetic fields, with which we clarify qualitative differences in and out of equilibrium. For a strong magne…
Chiral vortical effect with finite rotation, temperature, and curvature
Antonino Flachi, Kenji Fukushima
We perform an explicit calculation of the axial current at finite rotation and temperature in curved space. We find that finite curvature and mass corrections to the chiral vortica…
Spatially Assisted Schwinger Mechanism and Magnetic Catalysis
Patrick Copinger, Kenji Fukushima
Using the worldline formalism we compute an effective action for fermions under a temporally modulated electric field and a spatially modulated magnetic field. It is known that the…
Hamilton dynamics for the Lefschetz thimble integration akin to the complex Langevin method
Kenji Fukushima, Yuya Tanizaki
The Lefschetz thimble method, i.e., the integration along the steepest descent cycles, is an idea to evade the sign problem by complexifying the theory. We discuss that such steepe…
Unruh effect and condensate in and out of an accelerated vacuum
Sanjin Benic, Kenji Fukushima
We revisit the Unruh effect to investigate how finite acceleration would affect a scalar condensate. We discuss a negative thermal-like correction associated with acceleration. Fro…
Geometrically induced magnetic catalysis and critical dimensions
Antonino Flachi, Kenji Fukushima, Vincenzo Vitagliano
We discuss the combined effect of magnetic fields and geometry in interacting fermionic systems. At leading order in the heat-kernel expansion, the infrared singularity (that in fl…
Chiral gap effect in curved space
Antonino Flachi, Kenji Fukushima
We discuss a new type of QCD phenomenon induced in curved space. In the QCD vacuum, a mass-gap of Dirac fermions is attributed to the spontaneous breaking of chiral symmetry. If th…
Silver Blaze Puzzle in 1/Nc Expansions of Cold and Dense QCD Matter
Adi Armoni, Kenji Fukushima
We consider quantum chromodynamics (QCD) with Nc colors and Nf quark flavors at finite quark chemical potential mu_q or isospin chemical potential mu_I. We specifically address the…
Schwinger Mechanism with Stochastic Quantization
Kenji Fukushima, Tomoya Hayata
We prescribe a formulation of the particle production with real-time Stochastic Quantization. To construct the retarded and the time-ordered propagators we decompose the stochastic…
Order parameters with higher dimensionful composite fields
Yoshiki Watanabe, Kenji Fukushima, Tetsuo Hatsuda
We discuss the possibility of the spontaneous symmetry breaking characterized by order parameters with higher dimensionful composite fields. By analyzing general Ginzburg-Landau po…