arXiv subjects

Byungbae Kim

Publications and source records attributed to Byungbae Kim.

3 recordsLinked to original sources

arXiv1994

Complex Structures, Duality, and WZW-Models in Extended Superspace

We find the complex structure on the dual of a complex target space. For $N=(2,2)$ systems, we prove that the space orthogonal to the kernel of the commutator of the left and right complex structures is {\em always} integrable, and hence the kernel is parametrized by chiral and twisted chiral superfield coordinates. We then analyze the particular case of $SU(2)\times SU(2)$, and are led to a new $N=2$ superspace formulation of the $SU(2)\times U(1)$ WZW-model.

hep-th↗

arXiv1994

Super W-Symmetries, Covariantly Constant Forms And Duality Transformations

On a supersymmetric sigma model the covariantly constant forms are related to the conserved currents that are generators of a super W-algebra extending the superconformal algebra. The existence of covariantly constant forms restricts the holonomy group of the manifold. Via duality transformation we get new covariantly constant forms, thus restricting the holonomy group of the new manifold.

hep-th↗

arXiv1994

The Nonlinear Multiplet Revisited

Using a reformulation of the nonlinear multiplet as a gauge multiplet, we discuss its dynamics. We show that the nonlinear ``duality'' that appears to relate the model to a conventional $σ$-model introduces a new sector into the theory.

hep-th↗