46 citations · 85 across the 5 of their papers we have counts for
6 papers · 1 filter
Higgs Structures of Dyonic Instantons
Min-Young Choi, Kyung Kiu Kim, Choonkyu Lee +1
We study Higgs field configurations of dyonic instantons in spontaneously broken (4+1)-dimensional Yang-Mills theory. The adjoint scalar field solutions to the covariant Laplace eq…
Renormalized Effective Actions in Radially Symmetric Backgrounds: Exact Calculations Versus Approximation Methods
Gerald V. Dunne, Jin Hur, Choonkyu Lee +1
Our previously-developed calculational method (the partial wave cutoff method) is employed to evaluate explicitly scalar one-loop effective actions in a class of radially symmetric…
Instanton Determinant with Arbitrary Quark Mass: WKB Phase-shift Method and Derivative Expansion
Gerald V. Dunne, Jin Hur, Choonkyu Lee +1
The fermion determinant in an instanton background for a quark field of arbitrary mass is studied using the Schwinger proper-time representation with WKB scattering phase shifts fo…
Seiberg-Witten-type Maps for Currents and Energy-Momentum Tensors in Noncommutative Gauge Theories
Rabin Banerjee, Choonkyu Lee, Hyun Seok Yang
We derive maps relating the currents and energy-momentum tensors in noncommutative (NC) gauge theories with their commutative equivalents. Some uses of these maps are discussed. Es…
On mass dependences of the one-loop effective action in simple backgrounds
O-Kab Kwon, Choonkyu Lee, Hyunsoo Min
If background fields are soft on the scale set by mass of the particle involved, a reliable approximation to the field-theoretic one-loop effective action is obtained by a systemat…
Charged Particle System in Uniform Magnetic and Electric Fields: The Role of Galilean Transformation
Chanju Kim, Choonkyu Lee
Galilean transformation relates a physical system under mutually perpendicular uniform magnetic and electric fields to that under uniform magnetic field only. This allows a complet…