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Technological University Dublin
Semi-classical gravity combines classical treatment of the gravitational field with quantum mechanical treatment of matter fields. A significant challenge however is the divergence contained within the stress-energy tensor when solving the semi-classical Einstein equations. This work extends to higher dimensions an extremely efficient method for renormalizing the stress-energy tensor of a quantum scalar field in spherically-symmetric black hole spacetimes, thereby removing the divergences. The method applies to a scalar field with arbitrary field parameters. The utility of the method is demonstrated by computing the renormalized stress-energy tensor for a scalar field in the Schwarzschild black hole spacetime for odd dimensions.
Higher dimensional field theories, Quantum aspects of black holes, Quantum field theory, Quantum fields in curved spacetime, Quantum gravity, Renormalization
Computer Sciences | Mathematics
Dr Cormac Breen, Dr Peter Taylor
First Annual Teaching and Research Showcase 2023
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Scanlon, E. (2023). A Mode Sum Regularization Prescription in Quantum Field Theory in Curved Spacetimes in Higher Dimensions and for Charged Scalar Fields. Technological University Dublin. DOI: 10.21427/PRD5-XX20