Ghost-free formulation of quantum gravity in the light-cone gauge |
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Authors: | Michio Kaku |
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Institution: | Department of Physics, The City College of The City University of New York, New York, N.Y. 10031, USA |
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Abstract: | By choosing the light-cone gauge, we remove all redundant components of the metric tensor as well as all Faddeev-Popov ghosts from the Einstein Lagrangian, from which Feynman rules for two independent transverse components can be immediately formulated. The 2 + 2 decomposition of the metric tensor proves to be simpler than the usual canonical 1 + 3 decomposition, so that all spurious components can be explicitly eliminated from the spectrum. Because the Lagrangian is now only a function of independent components, it is possible to study the unresolved problem of the functional measure for quantum gravity. We are presently studying the measure problem. |
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