Quantum Physics, also known as quantum mechanics, is an abstract science that deals with the mechanical properties of the microscopic world. The wave-like behavior of energy and matter as it interacts is understood through a series of mathematical equations. These theoretical mathematical constructs originate in the works of mathematicians such as David Hilbert. The first application of quantum mechanics lies with Max Planck and Planck's Law
This law deals with the electromagnetic radiation emitted by any physical body (this is the energy emitted that causes an item to seem normal to use, or at extreme temperatures, to emit heat and appear yellow or in very hot to be invisible to the human eye such as ultraviolet radiation). Plank's law tackles the radiation emitted by a body with thermal equilibrium, such as a concave surface with black walls. Mathematics is used to determine the energy emitted by this theoretical construct.
The mathematics set the stage for a host of mathematical constructs that lead to the very diverse and wide open field of Quantum mechanics.