In the field of particle physics, string theory brings together quantum mechanics and Albert Einstein’s general theory of relativity. String theory provides a theoretical framework in which all particles, from photons to quarks, are one-dimensional strings as opposed to zero-dimensional points. If a version of string theory were found that held up in all contexts, it would serve as a single mathematical model for describing the nature of the universe—a “theory of everything” that would replace t

String theory is a theoretical framework in physics that attempts to describe all fundamental particles and forces in the universe in terms of one-dimensional "strings" rather than point-like particles. These strings can vibrate at different frequencies, and each vibration corresponds to a different particle or force. String theory seeks to unify Einstein's theory of general relativity, which describes gravity on large scales, with quantum mechanics, which deals with the behavior of particles on