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- Chinese Academy of SciencesCN65 papers
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6 papers · 1 filter
Extremal Isolated Horizon/CFT Correspondence
Xiao-Ning Wu, Yu Tian
The near-horizon limit of the extremal (weakly) isolated horizon is obtained under the Bondi-like coordinates. For the vacuum case, explicit coordinate transformation relating the…
Exact solutions of noncommutative vacuum Einstein field equations and plane-fronted gravitational waves
Ding Wang, R. B. Zhang, Xiao Zhang
We construct a class of exact solutions of the noncommutative vacuum Einstein field equations, which are noncommutative analogues of the plane-fronted gravitational waves in classi…
Quantum deformations of Schwarzschild and Schwarzschild-de Sitter spacetimes
Ding Wang, R. B. Zhang, Xiao Zhang
A quantum Schwarzschild spacetime and a quantum Schwarzschild-de Sitter spacetime with cosmological constant are constructed within the framework of a noncommutative Riemannian…
Noncommutative fields and actions of twisted Poincare algebra
M. Chaichian, P. P. Kulish, A. Tureanu +2
Within the context of the twisted Poincaré algebra, there exists no noncommutative analogue of the Minkowski space interpreted as the homogeneous space of the Poincaré group quotie…
Gravitational Anomaly and Hawking Radiation of Brane World Black Holes
Chao-Guang Huang, Jia-Rui Sun, Xiaoning Wu +1
We apply Wilczek and his collaborators' anomaly cancellation approach to the 3-dimensional Schwarzschild- and BTZ-like brane world black holes induced by the generalized C metrics…
Riemannian Geometry of Noncommutative Surfaces
M. Chaichian, A. Tureanu, R. B. Zhang +1
A Riemannian geometry of noncommutative n-dimensional surfaces is developed as a first step towards the construction of a consistent noncommutative gravitational theory. Historical…