# Opinions on **Graviton**

Here you have a list of opinions about Graviton and you can also give us your opinion about it.You will see other people's opinions about Graviton and you will find out what the others say about it.

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In physics, the **graviton** is a hypothetical elementary particle that mediates the force of gravitation in the framework of quantum field theory. If it exists, the graviton is expected to be massless (because the gravitational force appears to have unlimited range) and must be a spin-2 boson. The spin follows from the fact that the source of gravitation is the stress–energy tensor, a second-rank tensor (compared to electromagnetism's spin-1 photon, the source of which is the four-current, a first-rank tensor). Additionally, it can be shown that any massless spin-2 field would give rise to a force indistinguishable from gravitation, because a massless spin-2 field must couple to (interact with) the stress–energy tensor in the same way that the gravitational field does. Seeing as the graviton is hypothetical, its discovery would unite quantum theory with gravity. This result suggests that, if a massless spin-2 particle is discovered, it must be the graviton, so that the only experimental verification needed for the graviton may simply be the discovery of a massless spin-2 particle.

In the image below, you can see a graph with the evolution of the times that people look for Graviton. And below it, you can see how many pieces of news have been created about Graviton in the last years.

Thanks to this graph, we can see the interest Graviton has and the evolution of its popularity.

# What do you think of Graviton?

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