On Unitarity of Massive Gravity in Three Dimensions
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概要
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We examine a unitarity of a particular higher-derivative extension of general relativity in three space-time dimensions, which has been recently shown to be equivalent to the Pauli-Fierz massive gravity at the linearized approximation level, and explore a possibility of generalizing the model to higher space-time dimensions. We find that the model in three dimensions is indeed unitary in the tree-level, but the corresponding model in higher dimensions is not so due to the appearance of non-unitary massless spin-2 modes.
- 2009-06-25
著者
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NAKASONE Masashi
Department of Physics, University of the Ryukyus
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ODA Ichiro
Department of Physics, University of the Ryukyus
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Nakasone Masashi
Department Of Physics University Of The Ryukyus
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Oda Ichiro
Department Of Endoscopy National Cancer Center Hospital
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Oda Ichiro
Department Of Physics University Of The Ryukyus
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- On Unitarity of Massive Gravity in Three Dimensions
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