28 citations · 46 across the 6 of their papers we have counts for
6 papers
Calculating composite-particle spectra in Hamiltonian formalism and demonstration in 2-flavor QED
Etsuko Itou, Akira Matsumoto, Yuya Tanizaki
We consider three distinct methods to compute the mass spectrum of gauge theories in the Hamiltonian formalism: (1) correlation-function scheme, (2) one-point-function scheme, and…
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…
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…
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…
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…
The emergence of expanding space-time and intersecting D-branes from classical solutions in the Lorentzian type IIB matrix model
Kohta Hatakeyama, Akira Matsumoto, Jun Nishimura +2
The type IIB matrix model is a promising candidate for a nonperturbative formulation of superstring theory. As such, it is expected to explain the origin of space--time and matter…