151 citations · 1.7k across the 81 of their papers we have counts for
12 papers · 1 filter
On microscopic structure of the QCD vacuum
D. G. Pak, Bum-Hoon Lee, Y. Kim +2
We propose a new class of regular stationary axially symmetric solutions in a pure QCD which correspond to monopole-antimonopole pairs at macroscopic scale. The solutions represent…
Quantum stability of non-linear wave type solutions with intrinsic mass parameter in QCD
Youngman Kim, Bum-Hoon Lee, D. G. Pak +2
The problem of existence of a stable vacuum field in a pure quantum chromodynamics (QCD) is revised. Our approach is based on using classical stationary non-linear wave type soluti…
Stable spherically symmetric monopole field background in a pure QCD
Youngman Kim, Bum-Hoon Lee, D. G. Pak +1
We consider a stationary spherically symmetric monopole like solution with a finite energy density in a pure quantum chromodynamics (QCD). The solution can be treated as a static W…
Gauge invariant gluon spin operator for spinless non-linear wave solutions
Bum-Hoon Lee, Youngman Kim, D. G. Pak +2
We consider non-linear wave type solutions with mass scale parameter and vahished canonical spin density operator in a pure SU(2) quantum chtomodynamics (QCD). A new stationary sol…
A criterion for the nature of the superconducting transition in strongly interacting field theories : Holographic approach
Ki-Seok Kim, Kyung Kiu Kim, Youngman Kim +1
It is beyond the present techniques based on perturbation theory to reveal the nature of phase transitions in strongly interacting field theories. Recently, the holographic approac…
Quark Number Susceptibility with Finite Chemical Potential in Holographic QCD
Youngman Kim, Yoshinori Matsuo, Woojoo Sim +2
We study the quark number susceptibility in holographic QCD with a finite chemical potential or under an external magnetic field at finite temperature. We first consider the quark…