In general, the classical wave kinetics cannot be applied to describe the laser optical spectrum, ... Figure 2: Statistically steady-state solutions of the local wave kinetic equation.

E. Giorgi, S. Klainerman and J. Szeftel Wave equations estimates and the nonlinear stability of slowly rotating Kerr black holes. arXiv. Posted May 31, 2022. doi: 10.48550/arXiv.2205.14808.

Although the Schrödinger equation was published in 1926, the authors of a new study explain that the equation's origins are still not fully appreciated by many physicists.

A new solution to Albert Einstein's theory of general relativity suggests hypothetical gravitational stars that look like black holes could be nested within one another.