What is String Theory? | Quantum Mechanics String theory is a set of attempts to model the four known fundamental interactions - gravitation, electromagnetism, strong nuclear force, weak nuclear force - together in one theory. This tries to resolve the alleged conflict between classical physics and quantum physics by elementary units—the one classical force: gravity, and a new quantum field theory of the other three fundamental forces. According to string theory, all particles are just tiny vibr

At its core, string theory is an attempt to explain everything, the laws of nature, from the tiniest particles to the largest cosmic structures, in one unified framework. Instead of imagining the basic building blocks of the universe as tiny points (like in standard particle physics), string theory says they’re actually tiny, vibrating strings of energy. The way a string vibrates determines what kind of particle it becomes, one vibration might produce an electron, another could produce a photon.