Tag Info

New answers tagged

-1

Force carriers have a range told by the equation: $$ R≈h/4\pi mc $$ h is Planck's constant, m is mass and c is the speed of light This can be derived from the Heisenberg uncertainty principal: $$ \Delta E \Delta t ≥ h/4\pi $$ E is energy and t is time. This states that an uncertainty of energy can only be sustained over a limited amount of time depending on ...


1

GR predicts gravitational waves, which hence exist without violating it. By the wave-particle duality, there must be a particle (or at least a quasi-particle) associated with (the quantization of) such waves. We arbitrarily name them gravitons. Whatever aspect of them may be found to violate GR simply indicates how we need to amend our theory on the way to a ...


3

For energies below the scale where gravity becomes strongly coupled, the paradigm of QFT is applicable and teaches us that gravity is due to the exchange of massless spin-2 particles we call gravitons, and that the whole picture of curved space time is nothing but a nice way to equivalently represent the collective effect of a huge number of gravitons ...


0

Quite probably gravitons can cause similar effects as photons. The reason I believe so is that gravitons arise by quantizing linearized gravity (linear approximation to GR), the procedure is very similar to quantization of electromagnetism. Individual gravitons have the usual relativistic energy and momentum relation to frequency (energy-density is ...


0

One doesn't. We haven't even detected gravitational waves, much less single quanta of gravitational waves. As of now, gravitons are a theoretical idea derived by extending quantum mechanical ideas to general relativity.


1

From what I understand gravity is similarly quantized and transmitted via gravitons. Well, we don't know that. There is no accepted quantum theory of gravity, only approximations like semiclassical approaches. We cannot give you a "mental picture" at the moment because we don't have one. We can speculate all day, and extrapolate from all the other ...



Top 50 recent answers are included