4 papers
Exact Four-Parameter Rotating NS--NS Vacuum in Double Field Theory
Hun Jang, Minkyoo Kim, Jeong-Hyuck Park
We construct an exact rotating vacuum of the NS--NS sector, equivalently a Double Field Theory vacuum. The construction applies compact S-duality to a rotating Ein…
Perturbative Nicolai-Map Diagrammatics: Application to Poincaré Supergravity
Ji-Seong Chae, Hun Jang, Junhyeok Lee
We develop a perturbative, diagrammatic framework for constructing Nicolai maps and apply it to four-dimensional Poincaré supergravity expanded around flat Minkows…
Constraining Spatial Curvature with Priors from Swampland Conjectures
Simran Arora, Hun Jang, Shinji Mukohyama
We study a string-motivated theoretical prior on the quintessential dark energy model with exponential potential, \( V(Ï) = V_0 e^{-λÏ} \), allowing for non-zero spatial curvatu…
Traversable wormhole for string, but not for particle
Hun Jang, Minkyoo Kim, Hocheol Lee +1
We propose a Lorentzian wormhole geometry characterized by a closed string massless sector with nontrivial -flux and a scalar dilaton. In the string frame, the dilaton exhibits…