Diffeomorphism-Invariant Noncommutative Gravity with Twisted Local Lorentz Invariance

摘要

We propose a new theory of gravitation on noncommutative space-time which isinvariant under the general coordinate transformations, while the local Lorentz invariance isrealized as twisted gauge symmetry. Our theory is remarkably simpler compared to the existingformulations of noncommutative gravity.