Noncommutative Relativistic U(N) Chern-Simons Solitons (2009)
Chang-Young, Ee, Kimm, Kyoungtae, Lee, Daeho, Lee, Youngone
We investigate BPS soliton solutions of U(N) Chern-Simons gauge theory coupled to a scalar field in noncommutative plane. With a scalar field in the fundamental representation, we show that the BPS...
Charged Black Cosmic String (2008)
Nakwoo Kim, Yoonbai Kim, Kyoungtae Kimm
Global U(1) strings with cylindrical symmetry are studied in anti-de Sitter spacetime. According as the magnitude of negative cosmological constant, they form regular global cosmic strings, extremal...
Global Vortex and Black Cosmic String (2007)
Nakwoo Kim, Yoonbai Kim, Kyoungtae Kimm
We study global vortices coupled to (2+1) dimensional gravity with negative cosmological constant. We found nonsingular vortex solutions in OE 4 -theory with a broken U(1) symmetry, of which the...
Bogomolnyi Bound with a Cosmological Constant (1998)
Bogomolnyi-type bound is constructed for the topological solitons in O(3) nonlinear $\sigma$ model coupled to gravity with a negative cosmological constant. Spacetimes made by self-dual solutions...
Global Vortex and Black Cosmic String (1997)
Kim, Nakwoo, Kim, Yoonbai, Kimm, Kyoungtae
We study global vortices coupled to (2+1) dimensional gravity with negative cosmological constant. We found nonsingular vortex solutions in $\phi^4$-theory with a broken U(1) symmetry, of which the...
Charged Black Cosmic String (1997)
Kim, Nakwoo, Kim, Yoonbai, Kimm, Kyoungtae
Global U(1) strings with cylindrical symmetry are studied in anti-de Sitter spacetime. According as the magnitude of negative cosmological constant, they form regular global cosmic strings, extremal...
Finite Energy Electroweak Monopoles (1997)
We present finite energy analytic monopole and dyon solutions whose size is fixed by the electroweak scale. The new solutions are obtained by regularizing the recent Cho-Maison solutions of the...
We present finite energy analytic monopole and dyon solutions whose size is fixed by the electroweak scale. Our result shows that genuine electroweak monopole and dyon could exist whose mass scale is...
N=2 Supersymmetric Gauged O(3) Sigma Model (1997)
We discuss the N=2 supersymmetric extension of the gauged O(3) sigma model in (2+1) dimensions with an abelian Chern-Simons term. It is shown that the self-dual potential and the Bogomolny relations...
The self-dual Chern-Simons $CP(N)$ models (1996)
Kimm, Kyoungtae, Lee, Kimyeong, Lee, Taejin
We study the Chern-Simons $CP(N)$ models with a global $U(1)$ symmetry and found the self-dual models among them. The Bogomolnyi-type bound in these self-dual models is a nontrivial generalization of...
Anyonic Bogomol'nyi Solitons in a Gauged O(3) Sigma Model (1995)
Kimm, Kyoungtae, Lee, Kimyeong, Lee, Taejin
We introduce the self-dual abelian gauged $O(3)$ sigma models where the Maxwell and Chern-Simons terms constitute the kinetic terms for the gauge field. These models have quite rich structures and...