activity
20192026
most citedProgress in the numerical studies of the type IIB matrix model

29 citations · 88 across the 20 of their papers we have counts for

collaborators

21 papers

hep-lat2026

The QCD energy-momentum tensor on the lattice: non-perturbative renormalization with

Matteo Bresciani, Mattia Dalla Brida, Leonardo Giusti +3

We construct the traceless components of the energy-momentum tensor on the lattice for QCD with flavours, such that their correlation functions satisfy the appropriate Ward…

hep-lat2026

Impact of supersymmetry on the dynamical emergence of the spacetime in the type IIB matrix model with the Lorentz symmetry "gauge fixed"

Konstantinos N. Anagnostopoulos, Takehiro Azuma, Mitsuaki Hirasawa +3

The type IIB matrix model has been proposed as a nonperturbative formulation of superstring theory. While numerical simulations of this model are essential for probing nonperturbat…

hep-th2026

The emergence of (3+1)-dimensional expanding spacetime from complex Langevin simulations of the Lorentzian type IIB matrix model with deformations

Konstantinos N. Anagnostopoulos, Takehiro Azuma, Mitsuaki Hirasawa +3

The Lorentzian type IIB matrix model is a promising candidate for a nonperturbative formulation of superstring theory. In this model, the eigenvalue distribution of the …

hep-lat2026

Phase diagram of 4D SU(3) Yang-Mills theory at via imaginary theta simulations

Akira Matsumoto, Mitsuaki Hirasawa, Jun Nishimura +1

It has been speculated that the CP symmetry of 4D SU(3) Yang-Mills theory at is spontaneously broken in the confined phase, and it is recovered precisely at the deconfining t…

hep-lat2025

Numerical evidence for a CP broken deconfined phase at in 4D SU(2) Yang-Mills theory through simulations at imaginary

Mitsuaki Hirasawa, Masazumi Honda, Akira Matsumoto +2

We investigate the possibility of the spontaneous breaking of CP symmetry in 4D SU(2) Yang-Mills at , which has recently attracted much attention in the context of the higher-…

hep-lat2025

Computation of the latent heat of the deconfinement phase transition of SU(3) Yang-Mills theory

Leonardo Giusti, Mitsuaki Hirasawa, Michele Pepe +1

We investigate the thermal properties of Yang-Mills theory across the deconfinement phase transition considering the framework of shifted boundary conditions in th…

hep-lat2025

A precise study of the SU(3) Yang-Mills theory across the deconfinement transition

Leonardo Giusti, Mitsuaki Hirasawa, Michele Pepe +1

We perform a detailed computation of key quantities across the first-order deconfinement phase transition of the SU(3) Yang-Mills theory. Specifically, we calculate the entropy den…

hep-th2024★ 5 cited

Evidence of a CP broken deconfined phase in 4D SU(2) Yang-Mills theory at from imaginary simulations

Mitsuaki Hirasawa, Masazumi Honda, Akira Matsumoto +2

The spontaneous breaking of CP symmetry in 4D SU() pure Yang-Mills theory at has recently attracted much attention in the context of the higher-form symmetry and the 't Ho…

hep-th2024

The effects of SUSY on the emergent spacetime in the Lorentzian type IIB matrix model

Mitsuaki Hirasawa, Konstantinos N. Anagnostopoulos, Takehiro Azuma +4

The Lorentzian type IIB matrix model is a promising candidate for a nonperturbative formulation of superstring theory. Recently we performed complex Langevin simulations by adding…

hep-lat2024

Determination of the CP restoration temperature at in 4D SU(2) Yang-Mills theory through simulations at imaginary

Mitsuaki Hirasawa, Kohta Hatakeyama, Masazumi Honda +3

The 't Hooft anomaly matching condition provides constraints on the phase structure at in 4D SU() Yang-Mills theory. In particular, assuming that the theory is confined an…

hep-th2023

The emergence of expanding space-time in the Lorentzian type IIB matrix model with a novel regularization

Mitsuaki Hirasawa, Konstantinos N. Anagnostopoulos, Takehiro Azuma +4

The Lorentzian type IIB matrix model is a promising candidate for a non-perturbative formulation of superstring theory. However, it was recently found that a Euclidean space-time a…

hep-lat2023

Numerical studies on the finite-temperature CP restoration in 4D SU(N) gauge theory at

Akira Matsumoto, Kohta Hatakeyama, Mitsuaki Hirasawa +3

Recent studies on the 't Hooft anomaly matching condition have suggested a nontrivial phase structure in 4D SU() gauge theory at . In the large- limit, it has been found…

hep-lat2022

The emergence of expanding space-time in a novel large- limit of the Lorentzian type IIB matrix model

Mitsuaki Hirasawa, Konstantinos N. Anagnostopoulos, Takehiro Azuma +4

The Lorentzian type IIB matrix model is a promising candidate for a non-perturbative formulation of superstring theory. However, it was found recently that a Euclidean space-time a…

hep-th2022★ 29 cited

Progress in the numerical studies of the type IIB matrix model

Konstantinos N. Anagnostopoulos, Takehiro Azuma, Kohta Hatakeyama +5

The type IIB matrix model, also known as the IKKT model, has been proposed as a promising candidate for a non-perturbative formulation of superstring theory. Based on this proposal…

hep-th2022★ 9 cited

Complex Langevin studies of the emergent space-time in the type IIB matrix model

Kohta Hatakeyama, Konstantinos Anagnostopoulos, Takehiro Azuma +5

The type IIB matrix model has been proposed as a non-perturbative definition of superstring theory since 1996. We study a simplified model that describes the late time behavior of…

hep-lat2021★ 1 cited

A new phase in the Lorentzian type IIB matrix model and the emergence of continuous space-time

Mitsuaki Hirasawa, Konstantinos Anagnostopoulos, Takehiro Azuma +5

The Lorentzian type IIB matrix model is a promising candidate for a non-perturbative formulation of superstring theory. In previous studies, Monte Carlo calculations provided inter…

hep-lat2021

Relationship between the Euclidean and Lorentzian versions of the type IIB matrix model

Kohta Hatakeyama, Konstantinos Anagnostopoulos, Takehiro Azuma +5

The type IIB matrix model was proposed as a non-perturbative formulation of superstring theory in 1996. We simulate a model that describes the late time behavior of the IIB matrix…

hep-lat2021

A new technique for solving the freezing problem in the complex Langevin simulation of 4D SU(2) gauge theory with a theta term

Akira Matsumoto, Kohta Hatakeyama, Mitsuaki Hirasawa +4

We apply the complex Langevin method (CLM) to overcome the sign problem in 4D SU(2) gauge theory with a theta term extending our previous work on the 2D U(1) case. The topology fre…

hep-lat2021★ 28 cited

Tensor renormalization group and the volume independence in 2D U() and SU() gauge theories

Mitsuaki Hirasawa, Akira Matsumoto, Jun Nishimura +1

The tensor renormalization group method is a promising approach to lattice field theories, which is free from the sign problem unlike standard Monte Carlo methods. One of the remai…

hep-lat2020★ 4 cited

Complex Langevin analysis of 2D U(1) gauge theory on a torus with a term

Mitsuaki Hirasawa, Akira Matsumoto, Jun Nishimura +1

Monte Carlo simulation of gauge theories with a term is known to be extremely difficult due to the sign problem. Recently there has been major progress in solving this problem…

hep-th2019★ 12 cited

On the structure of the emergent 3d expanding space in the Lorentzian type IIB matrix model

Toshihiro Aoki, Mitsuaki Hirasawa, Yuta Ito +2

The emergence of (3+1)-dimensional expanding space-time in the Lorentzian type IIB matrix model is an intriguing phenomenon which was observed in Monte Carlo studies of this model.…