Flat self-dual gravity
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Publication:1980641
DOI10.1007/JHEP08(2021)082zbMATH Open1469.83018arXiv2106.01397MaRDI QIDQ1980641
Author name not available (Why is that?)
Publication date: 8 September 2021
Published in: (Search for Journal in Brave)
Abstract: We construct a new covariant action for "flat" self-dual gravity in four spacetime dimensions. The action has just one term, but when expanded around an appropriate background gives rise to a kinetic term and a cubic interaction. Upon imposing the light-cone gauge, the action reproduces the expected chiral interaction of Siegel. The new action is in many ways analogous to the known covariant action for self-dual Yang-Mills theory. There is also a sense in which the new self-dual gravity action exhibits the double copy of self-dual Yang-Mills structure.
Full work available at URL: https://arxiv.org/abs/2106.01397
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