Short distance freedom of quantum gravity |
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Authors: | Gaurav Narain Ramesh Anishetty |
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Institution: | The Institute of Mathematical Sciences, Taramani, Chennai 600113, India |
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Abstract: | Fourth order derivative gravity in 3+1 dimensions is perturbatively renormalizable and is shown to describe a unitary theory of gravitons in a limited coupling parameter space. The running gravitational constant which includes graviton contribution is computed. Generically, gravitational Newton?s constant vanishes at short distances in this perturbatively renormalizable and unitary theory. |
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Keywords: | Renormalization group Higher derivative gravity Unitarity |
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