18 citations · 143 across the 36 of their papers we have counts for
36 papers
Center-twisted Gribov spectra and the finite-volume Gaussian response in the refined Gribov--Zwanziger framework
Okuto Morikawa
We develop a continuum framework for comparing the Gribov--Zwanziger and center-vortex descriptions of confinement through the gauge-invariant twisted partition function of the ele…
Numerical Hints for Dyon Condensation at via Wilson-'t Hooft Loops in Yang-Mills Theory
Hiromasa Watanabe, Issaku Kanamori, Okuto Morikawa +3
Yang-Mills theories at and are unitarily equivalent, but their periodicity has a nontrivial realization. Recent developments in generalized symmetries rigorously pr…
Direct numerical simulation of the 't Hooft partition function and (de)confining phases
Okuto Morikawa, Hiroshi Suzuki
The 't Hooft partition function is a discrete Fourier transform of Yang--Mills partition functions in background 2-form gauge fields an…
Eigenstate Thermalization Hypothesis with projective representation
Soma Onoda, Osamu Fukushima, Ryusuke Hamazaki +1
The Eigenstate Thermalization Hypothesis (ETH) provides a sufficient condition for thermalization of isolated quantum systems. While the standard ETH is formulated in the absence o…
Novel Lattice Formulation of 2D Chiral Gauge Theory via Bosonization
Okuto Morikawa, Soma Onoda, Hiroshi Suzuki
Recently, lattice formulations of 2D Abelian chiral gauge theory have been constructed based on Abelian bosonization. It is remarkable about these 2D lattice formulations that they…
Numerical simulation of fractional topological charge in gauge theory coupled with 2-form gauge fields
Motokazu Abe, Okuto Morikawa
The pure gauge theory with a term has the -form global symmetry. When this symmetry is gauged, it is formally established that the topological charge…
Direct Monte Carlo Computation of the 't~Hooft Partition Function
Okuto Morikawa, Hiroshi Suzuki
The 't~Hooft partition function~ of an gauge theory with the 1-form symmetry is defined as the Fourier transform of the partiti…
Monte Carlo Simulation of the Yang--Mills Theory
Motokazu Abe, Okuto Morikawa, Hiroshi Suzuki
We carry out a hybrid Monte Carlo (HMC) simulation of the Yang--Mills theory in which the 2-form flat gauge field (the 't~Hooft flux) is explici…
Winding number on 3D lattice
Okuto Morikawa, Hiroshi Suzuki
We propose a simple numerical method which computes an approximate value of the winding number of a mapping from 3D torus~ to the unitary group~, when is approxima…
Lattice study of RG fixed point based on gradient flow in D sigma model
Okuto Morikawa, Mizuki Tanaka, Masakiyo Kitazawa +1
We present the lattice simulation of the renormalization group flow in the -dimensional linear sigma model. This model possesses a nontrivial infrared fixed point, called…
Yet another lattice formulation of 2D chiral gauge theory via bosonization
Okuto Morikawa, Soma Onoda, Hiroshi Suzuki
Recently, lattice formulations of Abelian chiral gauge theory in two dimensions have been devised on the basis of the Abelian bosonization. A salient feature of these 2D lattice fo…
Lattice realization of the axial noninvertible symmetry
Yamato Honda, Okuto Morikawa, Soma Onoda +1
In lattice gauge theory with compact variables, we construct the symmetry operator, i.e.\ the topological defect, for the axial noninvertible symmetry. This re…
Lattice construction of mixed 't Hooft anomaly with higher-form symmetry
Motokazu Abe, Okuto Morikawa, Soma Onoda +2
In this talk, we give the lattice regularized formulation of the mixed 't Hooft anomaly between the -form symmetry and the periodicity for d pure Yang-Mill…
Higher-group symmetry in lattice gauge theories with restricted topological sectors
Motokazu Abe, Naoto Kan, Okuto Morikawa +3
In this paper, we give a brief overview of generalized symmetries from the point of view of the lattice regularization as a fully regularized framework. At first, we illustrate the…
Magnetic operators in 2D compact scalar field theories on the lattice
Motokazu Abe, Okuto Morikawa, Soma Onoda +2
In lattice compact gauge theories, we must impose the admissibility condition to have well-defined topological sectors. The admissibility condition, however, usually forbids the pr…
Note on lattice description of generalized symmetries in gauge theories
Motokazu Abe, Okuto Morikawa, Soma Onoda
Topology and generalized symmetries in the gauge theory are considered in the continuum and the lattice. Starting from the gauge theory with the 't~Hoo…
Topology of lattice gauge theories coupled with -form gauge fields
Motokazu Abe, Okuto Morikawa, Soma Onoda +2
We extend the definition of Lüscher's lattice topological charge to the case of d gauge fields coupled with -form gauge fields. This result is achieved…
Higher-group structure in lattice Abelian gauge theory under instanton-sum modification
Naoto Kan, Okuto Morikawa, Yuta Nagoya +1
We consider the gauge theory on a four-dimensional torus, where the instanton number is restricted to an integral multiple of . This theory possesses the nontrivial highe…
Phase structure of linear quiver gauge theories from anomaly matching
Okuto Morikawa, Hiroki Wada, Satoshi Yamaguchi
We consider the phase structure of the linear quiver gauge theory, using the 't Hooft anomaly matching condition. This theory is characterized by the length of the quiver diagr…
Fractional topological charge in lattice Abelian gauge theory
Motokazu Abe, Okuto Morikawa, Hiroshi Suzuki
We construct a non-trivial principal bundle on~ from the compact lattice gauge field by generalizing Lüscher's constriction so that the cocycle cond…
More on the infrared renormalon in QCD(adj.) on
Masahiro Ashie, Okuto Morikawa, Hiroshi Suzuki +1
We present additional observations to previous studies on the infrared (IR) renormalon in QCD(adj.), the gauge theory with -flavor adjoint Weyl fermions on~$\m…
Identification of perturbative ambiguity canceled against bion
Okuto Morikawa, Hiromasa Takaura
It was conjectured that bions, semi-classical objects found in a compactified spacetime, are responsible for the cancellation of the so-called renormalon ambiguities. Contrary to t…
Vacuum energy of the supersymmetric model on in the expansion
Kosuke Ishikawa, Okuto Morikawa, Kazuya Shibata +1
By employing the expansion, we compute the vacuum energy~ of the two-dimensional supersymmetric (SUSY) model on~ with $\mathb…
Renormalon structure in compactified spacetime
Kosuke Ishikawa, Okuto Morikawa, Kazuya Shibata +2
We point out that the location of renormalon singularities in theory on a circle-compactified spacetime (with a small radius ) can differ fr…