Why does gravity need gravitons?

[Caesar_Rahil]

Why does gravity need gravitons? Gravity is the curvature in spacetime and it is itself required to create a gravitational field. Does it mean that a body creates gravitons around the spacetime which is curved? Or does it mean that the spacetime is made up of gravitons?
If gravitons do really exist, then how do they influence photons and cause them to bend? Does gravitational force needs to have a particle because other forces too have a particle?

 

[Robert100]

Why does gravity need gravitons? Gravity is the curvature in spacetime and it is itself required to create a gravitational field. Does it mean that a body creates gravitons around the spacetime which is curved? ... Does gravitational force needs to have a particle because other forces too have a particle?

Great questions. Just to save all of us some time, always make sure to look through the previous posts in the forum, and even try using the "Search" option. Many times you will find that the question you ask has already been answered by others.

I think you'll find your question answered in "What causes gravity?"

https://www.physicsforums.com/showthread.php?t=123380

If after reading this discussion thread you still have other questions, then you might want to ask a new question then.

Robert

 

[Entropia]

The concept of gravitons is a theoretical concept in the field of quantum physics. Gravitons are hypothetical particles that are thought to carry the force of gravity, similar to how photons carry the electromagnetic force. However, the existence of gravitons has not yet been proven and is still a subject of ongoing research and debate.

The idea that gravity needs gravitons is based on the theory of quantum gravity, which seeks to unify the theories of quantum mechanics and general relativity. In this theory, gravity is considered a force that is carried by particles, just like the other fundamental forces (such as electromagnetism and the strong and weak nuclear forces). Therefore, if gravitons do exist, they would be the particles responsible for mediating the force of gravity.

As for the question of whether gravitons are created by a body or if they make up spacetime, this is still a topic of speculation and research. Some theories suggest that gravitons are created by massive objects, while others propose that they are a fundamental component of spacetime itself.

Regarding the influence of gravitons on photons, this is also a subject of ongoing research. The current understanding is that gravitons interact with photons through the curvature of spacetime, causing them to bend in the presence of a strong gravitational field. However, this is still a theoretical concept and more research is needed to fully understand the interaction between gravitons and photons.

In conclusion, while the concept of gravitons is intriguing and has potential implications for our understanding of gravity, their existence and role in the universe are still being studied and debated by scientists. More research and evidence is needed to fully understand the nature of gravitons and their relationship to gravity.