The basic meaning of this equation is that a particle, such as an electron, is not just a point-like particle, but also a type of wave.

In particle physics, preons are postulated "point-like" particles, conceived to be subcomponents of quarks and leptons.

In the current Standard Model of particle physics, quarks are believed to be elementary point-like particles.

These are usually abstracted as point-like particles, even though they have volumes, shapes, structures, etc.

The trajectories of elementary (point-like) particles through space and time are thus a continuum of events called the world line of the particle.

In 1971, Ramond generalized Dirac's work for point-like particles to stringlike ones.

If they exist, they would not be point-like particles, but rather 1-dimensional "strings" of energy that vibrate in various dimensions.

In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings.

The starting point for string theory is the idea that the point-like particles of elementary particle physics can also be modeled as one-dimensional objects called strings.

The motion of a point-like particle can be described by drawing a graph of its position with respect to time.