Work

Flat self-dual gravity

Year: 2021

Type: article

Abstract: We construct a new covariant action for “flat” self-dual gravity in four space-time 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.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep08(2021)082

Authors: Kirill Krasnov, Evgeny Skvortsov

Institutions: University of Nottingham, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, University of Mons

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Russian Science Foundation, Science and Technology Facilities Council

Awards: G2425405332, G3811025905, G7934480667