28 citations · 80 across the 18 of their papers we have counts for
3 papers · 1 filter
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…
Backpropagating Hybrid Monte Carlo algorithm for fast Lefschetz thimble calculations
Genki Fujisawa, Jun Nishimura, Katsuta Sakai +1
The Picard-Lefschetz theory has been attracting much attention as a tool to evaluate a multi-variable integral with a complex weight, which appears in various important problems in…
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…