Cosmological and Black Hole Spacetimes in Twisted Noncommutative Gravity

Ohl, Thorsten; Schenkel, Alexander

Abstract

We derive noncommutative Einstein equations for abelian twists and their solutions in consistently symmetry reduced sectors, corresponding to twisted FRW cosmology and Schwarzschild black holes. While some of these solutions must be rejected as models for physical spacetimes because they contradict observations, we find also solutions that can be made compatible with low energy phenomenology, while exhibiting strong noncommutativity at very short distances and early times.

Citation

Ohl, T., & Schenkel, A. (2009). Cosmological and Black Hole Spacetimes in Twisted Noncommutative Gravity. Journal of High Energy Physics, 2009, https://doi.org/10.1088/1126-6708/2009/10/052

• Journal Article Type: Article
• Acceptance Date: Sep 27, 2009
• Online Publication Date: Oct 20, 2009
• Publication Date: Oct 20, 2009
• Deposit Date: Aug 22, 2019
• Journal: JHEP10(2009)052
• Electronic ISSN: 1029-8479
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 2009
• DOI: https://doi.org/10.1088/1126-6708/2009/10/052
• Keywords: High Energy Physics - Theory; General Relativity and Quantum Cosmology
• Public URL: https://nottingham-repository.worktribe.com/output/2460616
• Publisher URL: https://iopscience.iop.org/article/10.1088/1126-6708/2009/10/052