@article{c96d356a0c4545edb584427df27445f0,
title = "Gravity as Gauge Theory Squared: A Ghost Story",
abstract = "The Becchi-Rouet-Stora-Tyutin (BRST) transformations and equations of motion of a gravity-two-form-dilaton system are derived from the product of two Yang-Mills theories in a BRST covariant form, to linear approximation. The inclusion of ghost fields facilitates the separation of the graviton and dilaton. The gravitational gauge fixing term is uniquely determined by those of the Yang-Mills factors which can be freely chosen. Moreover, the resulting gravity-two-form-dilaton Lagrangian is anti-BRST invariant and the BRST and anti-BRST charges anticommute as a direct consequence of the formalism.",
author = "A. Anastasiou and L. Borsten and Duff, {M. J.} and S. Nagy and M. Zoccali",
note = "Funding Information: We are grateful for stimulating conversations with Gabriel L. Cardoso, Alexander Harrold, Gianluca Inverso, Ricardo Monteiro, Suresh Nampuri, Donal O{\textquoteright}Connell, and Christopher D. White. We are grateful to Philip Candelas for hospitality at the Mathematical Institute, University of Oxford. M. J. D. is also grateful to Marlan Scully for his hospitality in the Institute for Quantum Science and Engineering, Texas A&M University. He acknowledges the Leverhulme Trust for an Emeritus Fellowship and the Hagler Institute for Advanced Study at Texas A&M for a Faculty Fellowship. The work of L. B. is supported by a Schr{\"o}dinger Fellowship. The work of M. J. D. is supported in part by the STFC under rolling Grant No. ST/P000762/1. S. N. is supported by University of Nottingham Grant No. RB27L2. M. Z. is supported by an EPSRC Ph.D. studentship. Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society.",
year = "2018",
month = nov,
day = "21",
doi = "10.1103/PhysRevLett.121.211601",
language = "English",
volume = "121",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society (APS)",
number = "21",
}