Triple

Target class: self-dual gauge theory
Context triple: [Plebański formulation of self-dual gravity, instanceOf, self-dual gauge theory]

• A. gauge theory chosen
  A gauge theory is a type of field theory in which the laws of physics are invariant under continuous local transformations of certain internal symmetries, leading to the introduction of gauge fields that mediate fundamental interactions.
• B. electric–magnetic duality
  Electric–magnetic duality is a symmetry in certain physical theories that interchanges electric and magnetic fields or charges, often mapping a strongly coupled description of a system to a weakly coupled one while preserving its physical content.
• C. holographic duality
  Holographic duality is a theoretical principle in physics stating that a gravitational theory in a higher-dimensional spacetime is exactly equivalent to a non-gravitational quantum field theory living on its lower-dimensional boundary.
• D. non-Abelian gauge group
  A non-Abelian gauge group is a symmetry group of a gauge theory whose elements do not commute, leading to self-interacting gauge fields and rich interaction structures such as those in the strong and weak nuclear forces.
• E. topological quantum field theory
  A topological quantum field theory is a quantum field theory whose observables and correlation functions depend only on the topology of the underlying spacetime manifold, not on its geometric details such as distances or angles.
• F. None of above.