Twisting neutrons may reveal their internal structure

According to quantum mechanics, matter can be described by a wavefunction that can be modified, just like a wave, through processes such as interference. Under certain conditions, specific forms of interference can result in the formation of a vortex. Vortices are defined by some form of coiling motion around a stagnation point. In the case of matter waves, this coiling motion is attributed to the probability density associated with the wavefunction -- that is, its probability density current Within a quantum context, this motion often translates to a wave with twisted wavefronts that describes a quantized form of azimuthal motion known as orbital angular momentum (OAM).