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Quantum deformations of Schwarzschild and Schwarzschild-de Sitter spacetimes, Classical and Quantum Gravity

By Ding Wang, R. B. Zhang and Xiao Zhang


Abstract. A quantum Schwarzschild spacetime and a quantum Schwarzschild-de Sitter spacetime with cosmological constant Λ are constructed within the framework of a noncommutative Riemannian geometry developed in an earlier publication. The metrics and curvatures of the quantum Schwarzschild spacetime and the quantum Schwarzschild-de Sitter spacetime are computed. It is shown that up to the second order in the deformation parameter, the quantum spacetimes are solutions of a noncommutative Einstein equation. 1

Year: 2013
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