Fringjets

Fringjets are a hypothetical concept in theoretical physics, specifically within string theory. They are often described as one-dimensional vibrating strings that can exist in dimensions beyond the familiar four (three spatial and one temporal). The term itself suggests a connection to the "fringe" dimensions where these extended objects might reside.

In the context of string theory, fundamental particles are not point-like but rather tiny vibrating strings. The different vibrational modes of these strings correspond to different types of particles, such as electrons or photons. Fringjets are a way to visualize or conceptualize these strings as potentially extending into extra, compactified dimensions.

The idea of fringjets is not a standard or widely accepted term within mainstream string theory literature. It is more of a descriptive phrase that might be used in less formal discussions or by individual researchers to illustrate certain aspects of higher-dimensional physics. The concept relies on the fundamental principles of string theory, which posits that the universe may have more than four dimensions, and these extra dimensions are curled up or "compactified" to a very small size, making them undetectable to us. Fringjets, in this visualization, would be the parts of these vibrating strings that extend into these compactified dimensions.