262 citations · 4.2k across the 109 of their papers we have counts for
9 papers · 1 filter
deformed formulation of Hamiltonian SU(3) Yang-Mills theory
Tomoya Hayata, Yoshimasa Hidaka
We study Yang-Mills theory in dimensions based on networks of Wilson lines. With the help of the deformation, networks respect the (discretized) $\math…
String-net formulation of Hamiltonian lattice Yang-Mills theories and quantum many-body scars in a nonabelian gauge theory
Tomoya Hayata, Yoshimasa Hidaka
We study the Hamiltonian lattice Yang-Mills theory based on spin networks that provide a useful basis to represent the physical states satisfying the Gauss law constraints. We focu…
Lattice Lindblad simulation
Tomoya Hayata, Yoshimasa Hidaka, Arata Yamamoto
We perform the real-time lattice simulation of an open quantum system, which is based on the Schwinger-Keldysh path integral representation of the Lindblad formalism. Although the…
Thermalization of Yang-Mills theory in a dimensional small lattice system
Tomoya Hayata, Yoshimasa Hidaka
We study the real-time evolution of SU() Yang-Mills theory in a dimensional small lattice system after interaction quench. We numerically solve the Schr{ö}dinger equatio…
Image-processing the topological charge density in the CP(N-1) model
Yuya Abe, Kenji Fukushima, Yoshimasa Hidaka +3
We study the topological charge density distribution using the two-dimensional model. We numerically compute not only the topological susceptibility, which is a spatiall…
Lefschetz-thimble approach to the Silver Blaze problem of one-site fermion model
Yuya Tanizaki, Yoshimasa Hidaka, Tomoya Hayata
The sign problem of finite-density QCD at the zero temperature becomes very severe if the quark chemical potential exceeds half of the pion mass. In order to understand its propert…
Complex saddle points and the sign problem in complex Langevin simulation
Tomoya Hayata, Yoshimasa Hidaka, Yuya Tanizaki
We show that complex Langevin simulation converges to a wrong result, by relating it to the Lefschetz-thimble path integral, when the path-integral weight has different phases amon…
Some exact results on the QCD critical point
Yoshimasa Hidaka, Naoki Yamamoto
We show, in a model-independent manner, that the QCD critical point can appear only inside the pion condensation phase of the phase-quenched QCD as long as the contribution of flav…
Model study of the sign problem in a mean-field approximation
Yoshimasa Hidaka
We study the sign problem of the fermion determinant at nonzero baryon chemical potential. For this purpose we apply a simple model derived from Quantum Chromodynamics, in the limi…