36 citations · 119 across the 8 of their papers we have counts for
8 papers
Reconstructing propagators of confined particles in the presence of complex singularities
Yui Hayashi, Kei-Ichi Kondo
Propagators of confined particles, especially the Landau-gauge gluon propagator, may have complex singularities as suggested by recent numerical works as well as several theoretica…
Reconstructing confined particles with complex singularities
Yui Hayashi, Kei-Ichi Kondo
Complex singularities have been suggested in propagators of confined particles, e.g., the Landau-gauge gluon propagator. We rigorously reconstruct Minkowski propagators from Euclid…
Effects of a quark chemical potential on the analytic structure of the gluon propagator
Yui Hayashi, Kei-Ichi Kondo
We perform complex analyses of the gluon propagator at nonzero quark chemical potential in the long-wavelength limit, using an effective model with a gluon mass term of the Landau-…
Complex poles and spectral functions of Landau gauge QCD and QCD-like theories
Yui Hayashi, Kei-Ichi Kondo
In view of the expectation that the existence of complex poles is a signal of confinement, we investigate the analytic structure of the gluon, quark, and ghost propagators in the L…
Complex poles, spectral function and reflection positivity violation of Yang-Mills theory
Kei-Ichi Kondo, Yui Hayashi, Ryutaro Matsudo +2
We discuss the analytic continuation of the gluon propagator from the Euclidean region to the complex squared-momentum plane towards the Minkowski region from a viewpoint of gluon…
Reflection positivity and complex analysis of the Yang-Mills theory from a viewpoint of gluon confinement
Kei-Ichi Kondo, Masaki Watanabe, Yui Hayashi +2
In order to understand the confining decoupling solution of the Yang-Mills theory in the Landau gauge, we consider the massive Yang-Mills model which is defined by just adding a gl…
Complex poles and spectral function of Yang-Mills theory
Yui Hayashi, Kei-Ichi Kondo
We derive general relationships between the number of complex poles of a propagator and the sign of the spectral function originating from the branch cut in the Minkowski region un…
Mass-deformed Yang-Mills theory in the covariant gauge and its gauge-invariant extension through the gauge-independent BEH mechanism
Kei-Ichi Kondo, Yutaro Suda, Masaki Ohuchi +2
In this talk we consider the mass-deformed Yang-Mills theory in the covariant gauge which is obtained by just adding a gluon mass term to the Yang-Mills theory with the covariant g…