Quantum Gravity and Color-Kinematics Duality

Project funded by Swedish Research Council (Project grant), grant 2014-05722_VR. Participating organisations named by the source: Stockholm University. Funded amount: SEK 3,200,000, as stated by the source. Runs 2015-01-01 to 2018-12-31. Keywords: Naturvetenskap, Natural Sciences, Fysik, Physical Sciences, Subatomär fysik, Subatomic Physics. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-12-05); national funding data, not CORDIS. Abstract given by the source: In 2008, I proposed that gauge theories possess a previously unknown duality that relates spacetime degrees of freedom (kinematical quantities of particles) with internal-space degrees of freedoms (quantum color charges). This duality between color and kinematics has a profound consequence for gravity. It provides a precise mathematical mechanism for viewing gravitons as double copies of gluons. While a large body of evidence supports the existence of the duality, there is as of yet no clear identification of the kinematical algebra that underlies the new structure. This research program seeks to find a complete description of the duality, embedding the spacetime degrees of freedom into a mathematical Lie Algebra. A mathematically consistent version of gravity is string theory, which replaces point-like particles with extended string-like particles. An open theoretical problem is whether the extended nature of the graviton is inevitable, or if point-like theories may also avoid UV divergences. Candidates for such finite theories can be found amongst the supergravity theories. Although prevailing beliefs suggest that N=8 supergravity is a UV divergent theory, calculations show that it is remarkably well behaved. Recent consensus points to a 7-loop divergence, which is intimately related to a potential divergence at 5 loops in D>4. This project will complete a decisive calculation that probes the UV behavior of N=8 supergravity using state-of-the-art techniques.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. Retrieved 2026-10-28. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: The project "Quantum Gravity and Color-Kinematics Duality" is funded by the Swedish Research Council with a grant of SEK 3,200,000, running from January 1, 2015, to December 31, 2018, at Stockholm University. It investigates a duality in gauge theories related to gravity. Suggested technology pillar: simulation. Generated by AI from the public source text; it may contain errors and the original source is authoritative.