Gravitons vs Relativity: Einstein or Particle Exchange?

[QUANTUMQ]

does the idea of how gravity works through gravitons contradict einsteins general relativity?
the idea of a particle exchange (gravitons) does don't seem to agree with space-time fabric.
can they agree or is only one right? if so which do you think?

 

[humanino]

I can tell you that you can find Einstein's equations starting from the hypothesis of a massless spin-2 exchange. But I agree that, apart from being spin-2, we don't know much how the graviton should be defined. The obvious idea is $$g=\eta+h$$ where $$g$$ is the metric, $$\eta$$ is the metric of the vacuum, and $$h$$ is your graviton field. This idea does not allow you to couple fermions to the graviton. Sometimes we take the vierbein, which is "roughly speaking" the square root of the metric, to be related more directly to the graviton field.

 

[Entropia]

I would like to clarify that the concept of gravitons is a theoretical idea proposed by quantum physicists, while Einstein's theory of general relativity is a well-established theory that has been extensively tested and confirmed through observations and experiments.

The idea of gravitons as the particles responsible for the force of gravity is still a topic of debate and has not been proven conclusively. On the other hand, general relativity provides a comprehensive understanding of gravity as the curvature of space-time caused by the presence of matter and energy.

The concept of gravitons as the carriers of the force of gravity may seem to contradict general relativity, but it is important to note that these are two different theories attempting to explain the same phenomenon. It is possible that they can coexist and complement each other in understanding the complexities of gravity.

However, as of now, general relativity remains the more widely accepted and supported theory among the scientific community. It has successfully explained and predicted numerous gravitational phenomena, including the bending of light, gravitational time dilation, and the existence of black holes.

In conclusion, while the idea of gravitons and general relativity may seem to contradict each other, it is essential to keep an open mind and continue research to fully understand the nature of gravity. Both theories have their merits and limitations, and it is possible that a future theory may reconcile them. I believe in following the evidence and accepting the most supported and tested theory, which in this case is general relativity.