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swampwiz
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It would seem that they both must observe the laws of General Relativity.
Drakkith said:So one answer to your question is that nothing comes out of the black hole at all. No gravitons move from the black hole to the outside world.
swampwiz said:So if no gravitons move from the black hole, how does gravity work from there?
swampwiz said:It would seem that they both must observe the laws of General Relativity.
lomidrevo said:Graviton is a hypothetical particle in theory of quantum gravity. General Relativity says nothing about gravitons. GR rather describes spacetime as continuum.
swampwiz said:So what you saying is that there is "graviniferous ether" for gravitons?
swampwiz said:So what you saying is that there is "graviniferous ether" for gravitons?
lpetrich said:A black hole's gravitational field is frozen in place, so nothing has to escape it to make its field. Changes in it are a different story, however.
So you saying that gravitons eminate from mass within the black hole, but those are subject to GR, and so stay within the black hole? I wonder if the gravity waves on the return back (i.e., like an ICBM coming down after reaching maximum altitude within the Earth gravity well) somehow reinforce each other in some type of resonance.lpetrich said:A black hole's gravitational field is frozen in place, so nothing has to escape it to make its field. Changes in it are a different story, however.
As to gravitons, gravitational waves will propagate like electromagnetic ones, and will be unable to escape from inside the BH's event horizon.
Gravitons are not part of general relativity. General relativity ignores quantum theory and the graviton is a purely quantum particle.swampwiz said:It would seem that they both must observe the laws of General Relativity.
You continue to make claims that don't align with the facts, please show some links to reliable sourceslpetrich said:In the absence of a full quantum theory of gravity, we can quantize perturbations of a classical-limit gravitational field. Even without that, we can work with such perturbations in the classical limit. One finds that they travel on null geodesics, just like photons. This means that if a gravitational wave originates inside a black hole's event horizon, then it will not escape.
Yes, but then the background spacetime is not composed of gravitons since the “gravitons” are perturbations. In other words, a static black hole is not producing its gravity by emitting a stream of gravitons in such an approach.lpetrich said:In the absence of a full quantum theory of gravity, we can quantize perturbations of a classical-limit gravitational field.
As you may know, the only grav-waves detected up today have been originated outside black holes, and neutron star collisions, both from the dissipated energy of their movements, and consequently their gravitatory effects on the spàce-time geometry.lpetrich said:A black hole's gravitational field is frozen in place, so nothing has to escape it to make its field. Changes in it are a different story, however.
As to gravitons, gravitational waves will propagate like electromagnetic ones, and will be unable to escape from inside the BH's event horizon.
Photons and gravitons are both particles that travel at the speed of light, but they have different properties. Photons are particles of light and are affected by the electromagnetic force, while gravitons are particles of gravity and are affected by the gravitational force. This means that while photons can be absorbed or reflected by matter, gravitons are not affected by matter and can pass through it without being absorbed.
Photons, being particles of light, are affected by the strong gravitational pull of a black hole. As they get closer to the event horizon (the point of no return), their path becomes more and more curved, eventually leading them to fall into the black hole. This is because the mass of the black hole warps space-time, making it difficult for photons to escape.
Gravitons, as particles of gravity, are not affected by the gravitational pull of a black hole in the same way as photons. While photons are affected by the curvature of space-time, gravitons are the ones creating that curvature. This means that they are not bound by the same laws of physics as photons and can escape the black hole.
No, other particles such as neutrinos and some types of matter can also escape a black hole. However, they are still affected by the gravitational pull and can only escape if they have enough energy to overcome it. Gravitons, being massless particles, are not affected by the gravitational pull and can escape more easily.
While we have not yet directly observed gravitons, we know that they exist based on the theory of general relativity and the observations of gravitational waves. Gravitational waves, which are ripples in space-time, can only be created by the movement of massive objects, such as black holes. This provides evidence that gravitons, as particles of gravity, must be able to escape the black hole in order for these waves to be detected.