The concept of gravitons is a theoretical construct used in certain quantum theories to describe the exchange of gravitational force. Gravitons are hypothetical elementary particles that would mediate the force of gravity, analogous to how photons mediate the electromagnetic force.
In the framework of quantum field theory, particles are not considered to create their own gravitons. Instead, gravitons are postulated to be the carriers of gravitational force between particles that have mass or energy. According to this theoretical framework, particles with mass or energy interact with each other by emitting and absorbing gravitons, which transfer the gravitational force.
It's important to note that while the idea of gravitons is an interesting concept in the context of quantum gravity and attempts to unify quantum mechanics with general relativity, the existence of gravitons has not been experimentally confirmed yet. Gravitational waves, which were detected for the first time in 2015, provide indirect evidence supporting the existence of gravitons, but direct detection or observation of individual gravitons has not been achieved.
Our understanding of gravity and the behavior of particles is still an active area of research, and many questions remain unanswered. As scientific knowledge advances, our understanding of gravitons and their role in particle interactions may become clearer.