2009/06/30 by Elisabetta Di Grezia, ELISABETTA DI GREZIA, Giampiero Esposito +1 · 8 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Binary black hole #Black Holes and Theoretical Physics #Black hole (networking) #Noncommutative and Quantum Gravity Theories #Penrose process #Ring singularity #Rotating black hole #Rotational energy #Spin-flip #Tetrad #hep-th
paper · pdf · doi:10.1142/s0219887811005324
published in International Journal of Geometric Methods in Modern Physics 08(03), 657-668 (World Scientific) · 14 pages. The original calculations are completely new
arxiv created 2010/09/17 · openalex publication_date 2011/03/24 · arxiv updated 2011/06/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
This paper applies the first-order Seiberg–Witten map to evaluate the first-order non-commutative Kerr tetrad. The classical tetrad is taken to follow the locally non-rotating frame prescription. We also evaluate the tiny effect of non-commutativity on the efficiency of the Penrose process of rotational energy extraction from a black hole.