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Emergence of Calabi-Yau manifolds in high-precision black-hole scattering. [PDF]

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Driesse M   +7 more
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Quantum CTC's in General Relativity

General Relativity and Gravitation, 2001
Closed timelike curves and their importance in theories of quantum gravity are discussed at the example of tunneling spacetimes constructed from generalized Misner spacetimes. These models are quantum mechanically stable and show negative energy densities and closed timelike curves at the Planck scale.
Garay, Luis J.   +1 more
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GENERAL RELATIVITY AND QUANTUM MECHANICS

International Journal of Modern Physics A, 2001
Usual quantum mechanics requires a fixed background spacetime geometry and its associated causal structure. A generalization of the usual theory may therefore be needed at the Planck scale for quantum theories of gravity in which spacetime geometry is a quantum variable.
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Quantum and non-quantum anomalies in general relativity

Nuclear Physics B - Proceedings Supplements, 1991
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