403 citations · 3.2k across the 103 of their papers we have counts for
4 papers · 1 filter
The D2 Susy Zoo
Dongsu Bak, Nobuyoshi Ohta, Paul K. Townsend
We present new supersymmetric solutions of the Dirac-Born-Infeld equations for time-independent D2-branes, including a 1/2 supersymmetric `dyonic' D2-brane and various 1/4 supersym…
From static to evolving geometries -- R-charged hydrodynamics from supergravity
Dongsu Bak, Romuald A. Janik
We show that one can obtain asymptotic evolving boost-invariant geometries in a simple manner from the corresponding static solutions. We exhibit the procedure in the case of a sup…
Supersymmetric Q-Lumps in the Grassmannian nonlinear sigma models
Dongsu Bak, Sang-Ok Hahn, Joohan Lee +1
We construct the N=2 supersymmetric Grassmannian nonlinear sigma model for the massless case and extend it to massive N=2 model by adding an appropriate superpotential. We then stu…
Dual of Big-bang and Big-crunch
Dongsu Bak
Starting from the Janus solution and its gauge theory dual, we obtain the dual gauge theory description of the cosmological solution by procedure of the double anaytic continuation…