Evidence of gravity bending light suggests that EM interacts with gravity. Many theories attempt to develop this further, and seem to stop short of completion.
Some of the most interesting work has been done with curl free magnetic vector potentials and the detection of them with Josephson junctions. Curl free requires the cancelation of all electric and magnetic components by interference patterns. It is further demonstrated that the resulting potential amplitude and frequency can be modulated by the sources before it passes through a set of EM shields and is detected by a Josephson Junction. The question remains is the stress energy that passes through an EM barrier of gravitational type, or is it some other type stress energy that is not detected by other methods?
It seems significant that magnetic fields are repelled by superconductors. If a graviton has any sort of EM resonance, then some detectable reaction should occur when a graviton passes through a super conductor similar to the action of a curl free magnetic vector potential on a JJ.
To me it looks like there is opportunity to discover something important and verifiable about types of stress energy and how they interact together.
Does A Graviton Induce Electric Current When Passing Through A Josephson Junction?