De Broglie's Theorem is a fundamental principle in quantum mechanics that states that all particles, including matter, have both wave-like and particle-like properties.
De Broglie's Theorem was first proposed by French physicist Louis de Broglie in 1924 as a solution to the wave-particle duality paradox.
De Broglie's Theorem is unique in that it applies to both matter particles (such as electrons) and electromagnetic waves, while other quantum theories only apply to one or the other.
The equation for De Broglie's Theorem is λ = h/mv, where λ is the wavelength of the particle, h is Planck's constant, m is the mass of the particle, and v is its velocity.
De Broglie's Theorem is used in various fields such as quantum mechanics, particle physics, and chemistry to understand the behavior of particles at the atomic and subatomic level. It has also been applied in the development of technologies such as electron microscopes and particle accelerators.