1.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP720 papers
- RIKENJP678 papers
- Kyoto UniversityJP465 papers
- Tokyo Institute of TechnologyJP358 papers
- High Energy Accelerator Research OrganizationJP342 papers
- Centre National de la Recherche ScientifiqueFR311 papers
- The University of OsakaJP309 papers
- Japan Atomic Energy AgencyJP283 papers
- University of TsukubaJP283 papers
- Tohoku UniversityJP280 papers
- Advanced Science Research CenterJP248 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR246 papers
115 papers · 1 filter
Dynamical symmetry breaking in Georgi-Glashow chiral-gauge theories
Hao-Lin Li, Álvaro Pastor-Gutiérrez, Shahram Vatani +1
We investigate dynamical symmetry breaking in a class of chiral gauge theories containing the Georgi-Glashow model. These theories feature a gauge sector and two fermion species th…
Unified exact WKB framework for resonance -- Zel'dovich/complex-scaling regularization and rigged Hilbert space
Okuto Morikawa, Shoya Ogawa
We develop a unified framework for analyzing quantum mechanical resonances using the exact WKB method. The non-perturbative formulation based on the exact WKB method works for inco…
Perturbation theory of rotating scalar fields and vacuum insensitivity to rotation
Ryo Kuboniwa, Kazuya Mameda
We formulate the finite-temperature perturbation theory of interacting scalar fields under external rotation. Because of the translational non-invariance in the radial direction, G…
4D Chern-Simons theory with auxiliary fields
Osamu Fukushima, Kentaroh Yoshida
The auxiliary field sigma model (AFSM) has recently been constructed by Ferko and Smith as deformations of the principal chiral model by including auxiliary fields and the potentia…
Photonic spin Hall effect from quantum kinetic theory in curved spacetime
Kazuya Mameda, Naoki Yamamoto, Di-Lun Yang
Based on quantum field theory, we formulate the Wigner function and quantum kinetic theory for polarized photons in curved spacetimes which admit a covariantly constant timelike ve…
Negative string tension of higher-charge Schwinger model via digital quantum simulation
Masazumi Honda, Etsuko Itou, Yuta Kikuchi +1
We study some properties of generalized global symmetry for the charge- Schwinger model in the Hamiltonian formalism, which is the -dimensional quantum electrodynamics wi…
Second order chiral kinetic theory under gravity and antiparallel charge-energy flow
Tomoya Hayata, Yoshimasa Hidaka, Kazuya Mameda
We derive the chiral kinetic theory under the presence of a gravitational Riemann curvature. It is well-known that in the chiral kinetic theory there inevitably appears a redundant…
Perturbative -matrix unitarity () in gravity
Yugo Abe, Takeo Inami, Keisuke Izumi
We show that in the quadratic curvature theory of gravity, or simply gravity, the tree-level unitariy bound (tree unitarity) is violated in the UV region but an analog…
Analysis for Lorentzian conformal field theories through sine-square deformation
Xun Liu, Tsukasa Tada
We reexamine two-dimensional Lorentzian conformal field theory using the formalism previously developed in a study of sine-square deformation of Euclidean conformal field theory. W…
Emergent discrete 3-form symmetry and domain walls
Yoshimasa Hidaka, Muneto Nitta, Ryo Yokokura
We show that axion models with the domain wall number in dimensions, i.e., periodic scalar field theories admitting axion domain walls, exhibit an emergent ${\mathb…
Spontaneous symmetry breaking and Nambu-Goldstone modes in open classical and quantum systems
Yoshimasa Hidaka, Yuki Minami
We discuss spontaneous symmetry breaking of open classical and quantum systems. When a continuous symmetry is spontaneously broken in an open system, a gapless excitation mode appe…
Time development of conformal field theories associated with and operators
Tsukasa Tada
In this study, we examined consequences of unconventional time development of two-dimensional conformal field theory induced by the and operators, employing the fo…
Topological order in a color-flavor locked phase of -dimensional gauge-Higgs system
Yoshimasa Hidaka, Yuji Hirono, Muneto Nitta +2
We study a -dimensional gauge theory with -flavor fundamental scalar fields, whose color-flavor locked (CFL) phase has topologically stable non-Abelian vortices. T…
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…
Distribution of solutions of the fastest apparent convergence condition in optimized perturbation theory and its relation to anti-Stokes lines
Shoichiro Tsutsui, Takahiro M. Doi
We discuss fundamental properties of the fastest apparent convergence (FAC) condition which is used as a variational criterion in optimized perturbation theory (OPT). We examine an…
Poincaré invariance in NRQCD and pNRQCD revisited
Matthias Berwein, Nora Brambilla, Sungmin Hwang +1
We investigate how fields transform under the Poincaré group in nonrelativistic effective field theories of QCD. In constructing these transformations, we rely only on symmetries a…
S-matrix Unitarity and Renormalizability in Higher Derivative Theories
Yugo Abe, Takeo Inami, Keisuke Izumi +2
We investigate the relation between the -matrix unitarity () and the renormalizability, in theories with negative norm states. The relation has been confirmed in…
On the observer dependence of the Hilbert space near the horizon of black holes
Kanato Goto, Yoichi Kazama
One of the pronounced characteristics of gravity, distinct from other interactions, is that there are no local observables which are independent of the choice of the spacetime coor…
Non-equilibrium Chiral Magnetic/Vortical Effects in Viscous Fluids
Yoshimasa Hidaka, Di-Lun Yang
We utilize the chiral kinetic theory in a relaxation-time approximation to investigate the nonlinear anomalous responses of chiral fluids with viscous effects. Unlike the cases in…
Majorana neutrino and the vacuum of Bogoliubov quasiparticle
Kazuo Fujikawa
The Lagrangian of the seesaw mechanism is C violating but the same Lagrangian when re-written in terms of Majorana neutrinos is manifestly C invariant. To resolve this puzzling fea…
Conformal Quantum Mechanics and Sine-Square Deformation
Tsukasa Tada
We revisit conformal quantum mechanics (CQM) from the perspective of sine-square deformation (SSD) and the entanglement Hamiltonian. The operators that correspond to SSD and the en…
Matter scattering in gravity and unitarity
Yugo Abe, Takeo Inami, Keisuke Izumi +1
We investigate the ultraviolet (UV) behavior of two-scalar elastic scattering with graviton exchanges in higher curvature gravity theory. In the Einstein gravity, matter scattering…
Baryon number violation and novel canonical anti-commutation relations
Kazuo Fujikawa, Anca Tureanu
The possible neutron-antineutron oscillation is described by an effective quadratic Lagrangian analogous to the BCS theory. It is shown that the conventional equal-time anti-commut…
Nonlinear Responses of Chiral Fluids from Kinetic Theory
Yoshimasa Hidaka, Shi Pu, Di-Lun Yang
The second-order nonlinear responses of inviscid chiral fluids near local equilibrium are investigated by applying the chiral kinetic theory (CKT) incorporating side-jump effects.…