wave mechanics

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The branch of theoretical physics that mathematically represents subatomic particles as waves in fields, as in the theory of quantum electrodynamics.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun physics, mathematics The mathematical basis for quantum mechanics in which light and subatomic particles have the characteristics of both waves and particles.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the modern form of quantum theory; an extension of quantum mechanics based on Schrodinger's equation; atomic events are explained as interactions between particle waves