Relativistic Free Particle
There are a number of equations describing relativistic particles: see relativistic wave equations.
Read more about this topic: Free Particle
Famous quotes containing the words free and/or particle:
“Women want to serve, and this is where their happiness lies: but the free spirit does not want to be served, and this is where his happiness lies.”
—Friedrich Nietzsche (1844–1900)
“You don’t hold any mystery for me, darling, do you mind? There isn’t a particle of you that I don’t know, remember, and want.”
—Noël Coward (1899–1973)