Laser is an acronym for light amplification by stimulated emission of radiation. It is a device that controls the way energized atoms release photons. The principles that govern lasers are rooted in quantum mechanics.
Paul Adrien Maurice Dirac (British, 1902-1984)
was a theoretical physicist and founder of the field of quantum physics. He is also known for the Dirac Delta Function.
The Dirac Equation is a relativistic quantum mechanical wave equation:
where m is the rest mass of the electron, c is the speed of light, p is the momentum operator, is the reduced Planck’s constant, x and t are the space and time coordinates respectively, and is a four-component wavefunction.