The theoretical basis of modern physics that explains matter and energy on a subatomic level. This includes the assumption that matter is made of discrete units or "quanta" of energy (Planck), that radiation is quantized in the same way (Einstein), that energy and matter are the same and can be a particle and a wave at the same time (de Broglie), that we cannot measure both the speed and location of a ceratin subatomic particle (Heisenberg) which most people know as "The Uncertainty Principle", and the Copenhagen Interpretation which states that a particle cannot have specific properties or even exist until it is measured (Bohr, Schrodinger). Most of us know this as the "observer effect", which shows that there exists no "objective" realtiy.

the study of the jumps from one energy level to another as it relates to the structure and behavior of atoms. (Basic Science/Magnetism/reviewatom/discussion004.htm)

Max Planck said the energy emitted in radiation (e.g., light) occurs in discrete quanta but acquires wavelike properties under certain conditions. Light is neither particles nor waves in the classical sense of the terms.

The theory that energy can only be absorbed or radiated in discrete values or quanta. All particles are subject to quantum theory. Click here to find out more.

The set of physical laws that apply primarily on a very small scale, the size of atoms or smaller.

(physics) a physical theory that certain properties occur only in discrete amounts (quanta)

Physical theory which was developed between 1900 and 1930. It explains and quantifies effects of microscopic objects in a way which radically breaks with the classical physics of Newton and its ideal of a complete, deterministic description of all objects in space and time. Einstein was personally involved in the development of this theory.

A major branch of modern physics arguing for the emission of light (radiant energy) in discrete amounts or "quanta". It is now established as a corner-stone of modern physics, even though its philosophical problems (concerning reality and causality) remain contentious.

The theory that all electromagnetic radiation is emitted and absorbed in quanta of energy equal to hv, where is a constant called the Planck constant after the propounder of quantum theory, and , is the frequency of the radiation.

The modern theory of discretized matter, electromagnetic radiation, and interaction between matter and radiation. It generalizes and supersedes classical physics, mainly in the realm of atomic and subatomic phenomena. Also known as quantum mechanics.

The theory that considers light to have mass, as opposed to the wave theory, which considers light to be without mass, and the transfer of energy is in definite discrete amounts.

The theory which describes laws of physics that apply on very small scales. The essential feature is that energy, momentum, and angular momentum as well as charges come in discrete amounts called quanta.

A theory dealing with atomic particles, incorporating the concepts of wave-particle duality and the discovery that it is impossible to accurately know both the position and the velocity of a particle.

(noun) Theory in physics based on the concept of dividing radiant energy into finite (known pieces of) quanta and applied to numerous processes involving shifting or altering energy on an atomic or molecular scale. (Totally difficult stuff!)

States that electromagnetic radiation is composed of discrete particles (quanta), called photons that also exhibit wave-like properties. Quantum theory also states that electrons and other particles have both particle-like and wave-like properties.

The theory first stated by Max Planck (before the Physical Society of Berlin on December 14, 1900) that all electromagnetic radiation is emitted and absorbed in quanta , each of magnitude hv , being the Planck constant and the frequency of the radiation. See radiation laws.