2017/04/30 by S. Hoseinzadeh, Siamak Hoseinzadeh, A. Rezaei-Aghdam
Physics and Astronomy · #Black Holes and Theoretical Physics #Black hole (networking) #Cosmology #Cosmology and Gravitation Theories #Friedmann–Lemaître–Robertson–Walker metric #Gauge (firearms) #Gauge theory #Mathematical physics #Noncommutative and Quantum Gravity Theories #Physics #Quantum mechanics #String (physics) #String theory #hep-th
paper · pdf · doi:10.1016/j.physletb.2017.08.068
published as Phys. Lett. B773 (2017) 440-447 · 15 pages. Section 4 is rewritten and 2 refs. are added
openalex publication_date 2017/09/05 · arxiv created 2017/10/18 · arxiv updated 2017/10/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We introduce a four-dimensional extension of the Poincaré algebra (N) in (1+1)-dimensional space-time and obtain a (1+1)-dimensional gauge symmetric gravity model using the algebra N. We show that the obtained gravity model is dual (canonically transformed) to the (1+1)-dimensional anti de Sitter (AdS) gravity. We also obtain some black hole and Friedmann–Robertson–Walker (FRW) solutions by solving its classical equations of motion. Then, we study A4,8A1⊗A1 gauged Wess–Zumino–Witten (WZW) model and obtain some exact black hole and cosmological solutions in string theory. We show that some obtained black hole and cosmological metrics in string theory are same as the metrics obtained in solutions of our gauge symmetric gravity model.