# Gravitons & Inertia: Do They Cause Each Other?

• Usaf Moji
In summary, the conversation discusses the belief among those who believe in gravitons that they are responsible for causing inertia, due to the equivalence of gravitational and inertial mass. However, some argue that it would make more sense for a Higgs Boson to provide inertia rather than a graviton, as the latter's role is to transmit quantum force signals. Two papers by Weinberg are mentioned, in which he demonstrates that the quantum theory of a massless spin-2 particle leads to General Relativity under certain assumptions about Lorentz invariance and the S-matrix pole structure. Additionally, Weinberg also treats electromagnetism and shows the conservation of charge and derivation of Maxwell's equations using similar assumptions but with the existence of a
Usaf Moji
Among those who believe in gravitons, is it believed that gravitons cause inertia? This would seem logical to me since gravitational mass is, as far as we can tell, the same as inertial mass.

Gravitational mass and inertial mass are equivalent under the weak argument of General Relativity. Graitons are supposed to mediate the force of gravity on long distances, whilst inertial mass itself is strictly provided by a Higgs Boson.

Would it not be better to say a Higgs provided inertia rather than a graviton, who's job is to send quantum force signals over distances?

There are two old papers by Weinberg in which he demonstrates that the quantum theory of a massless spin-2 particle gives you GR so long as you impose the condition that the S-matrix is Lorentz invariant, plus one other condition in each paper. I can't follow all of the arguments, but in case you can:

Weinberg, S;Phys Rev. vol 135, 1964;
-Makes additional assumptions about the pole structure of the S-matrix to demonstrate the equivalence of gravitational and inertial mass.
Weinberg, S;Phys. Lett. vol 9, 1965
-Uses perturbation theory to derive Einstein's equations under the additional assumption that effectively helicity =$$\pm$$spin for massless particles.

To boot, he also treats electromagnetism in each, showing the conservation of charge and deriving Maxwell's equations under the same assumptions, but assuming instead the existence of a massless spin-1 particle.

## What are gravitons?

Gravitons are hypothetical particles that are believed to transmit the force of gravity. They are predicted by some theories of quantum physics, but have not yet been observed or proven to exist.

## What is inertia?

Inertia is the property of matter that causes it to resist changes in motion. It is often described as the tendency of an object to keep moving in a straight line at a constant speed, or to stay at rest, unless acted upon by an outside force.

## Do gravitons cause inertia?

There is currently no scientific evidence to suggest that gravitons cause inertia. Inertia is a fundamental property of matter, while gravitons are theoretical particles that are thought to transmit the force of gravity.

## Do gravitons and inertia interact with each other?

There is no proven interaction between gravitons and inertia. As mentioned before, inertia is a fundamental property of matter, while gravitons are hypothetical particles that have not been observed or proven to exist.

## Is there a relationship between gravitons and inertia?

While there is no known relationship between gravitons and inertia, some scientists propose that the existence of gravitons could help explain the origins of inertia. However, this is still a subject of ongoing research and has not been confirmed.

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