
arXiv: 0706.1778
The Kawai-Lewellen-Tye (KLT) relations derived from string theory tell us that perturbative gravity amplitudes are the "square" of the corresponding amplitudes in gauge theory. Starting from the light-cone Lagrangian for pure gravity we make these relations manifest off-shell, for three- and four-graviton vertices, at the level of the action.
9 pages
High Energy Physics - Theory, Nuclear and High Energy Physics, High Energy Physics - Theory (hep-th), Kawai-Lewellen-Tye relations, FOS: Physical sciences, String and superstring theories; other extended objects (e.g., branes) in quantum field theory, Quantization of the gravitational field, Gravitational interaction in quantum theory
High Energy Physics - Theory, Nuclear and High Energy Physics, High Energy Physics - Theory (hep-th), Kawai-Lewellen-Tye relations, FOS: Physical sciences, String and superstring theories; other extended objects (e.g., branes) in quantum field theory, Quantization of the gravitational field, Gravitational interaction in quantum theory
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