Evidence for gravitons from decoherence by bremsstrahlung

Understand

It is thought that gravitons are impossible to detect, even with the technological ability to construct experiments larger than Jupiter.

• However, in principle it is possible to detect the emission of single gravitons through the decoherence of relativistic Planck-mass superpositions by gravitational bremsstrahlung.
• Although enormous experimental challenges ensure that such an experiment will not be achievable in the foreseeable future, this possibility suggests that gravitons are not forever outside our empirical grasp.
• It is also evidence that decoherence as a detection method has untapped potential.