This is not a duplicate. I do not ask about the gravitational field of the black hole, or why it extends farther out then the event horizon. I do understand that the gravitational field is described by a mathematical model called virtual gravitons. And that it has nothing to do with actual real gravitons. I do understand that nothing (no info, no real particles) can escape the event horizon. My question is about real gravitons (hypothetical).
I have read this question:
Where John Rennie says:
The answer to your question is that nothing can travel faster than light, and light can't escape through the event horizon. Therefore gravitational waves can't escape either.
Now GWs are said to be made of real gravitons. They are said to be the quanta of gravity, just like photons are the quanta of electromagnetism, and the classical EM wave is built up by a herd of photons.
where Bob Bee says:
On gravitons, probably a quantum theory of gravity will have to include gravitons, but till we figure out that theory we don't know for sure. All points to there probably being gravitons as the carriers of the gravitational waves, but we don't really know yet what that means.
where annav says:
Gravitons are to gravitational waves the theoretical analogue of photons for electromagnetic waves. They are the proposed carriers of the gravitational interactions at the quantum level, and are expected to appear naturally in a future theory of quantized gravity. At the moment quantization of gravity can be accommodated in string theories, which are at the frontier of research for particle physics. The standard model involves only the three other forces , not the gravitational. A future standard model should have both the present standard model and quantization of gravity, a Theory Of Everything (TOE). So photons are the building blocks of light, and gravitons are (hopefully) the building blocks of gravitational waves.
Gravitons do interact with matter, but the interaction has a low crossection.
Unambiguous detection of individual gravitons, though not prohibited by any fundamental law, is impossible with any physically reasonable detector. The reason is the extremely low cross section for the interaction of gravitons with matter. For example, a detector with the mass of Jupiter and 100% efficiency, placed in close orbit around a neutron star, would only be expected to observe one graviton every 10 years, even under the most favorable conditions.
Real gravitons do have an extremely low cross section when interacting with matter.
Thus, they would easily just fly through a BH. The BH would seem transparent to a real graviton.
- if the real graviton has a extremely low cross section when interacting with matter, does that mean that the real graviton will just fly through the BH, like it (the BH) was transparent?