Definition
graviton
noun
- a hypothetical elementary particle that is thought to mediate the force of gravity in quantum field theory
Usage: physics; theoretical
Examples
- Physicists are searching for evidence of the graviton to complete the unified theory of forces.
- In quantum gravity, the graviton would be the quantum of the gravitational field.
- The detection of gravitons remains one of the major unsolved challenges in modern physics.
- String theory predicts that the graviton is a closed string vibrating in extra dimensions.
- Unlike photons and other known particles, the graviton has never been directly observed.