Quantum mechanics, science dealing with the behavior of matter and light on the atomic and subatomic scale. It attempts to describe and account for the properties of molecules and atoms and their constituents—electrons, protons, neutrons, and other more esoteric particles such as quarks and gluons.

Learn about the scientific laws that describe the weird behavior of subatomic particles and the history of quantum mechanics. Explore the concepts of wave-particle duality, Schrödinger's cat, quantum entanglement and more.

Quantum mechanics is, at least at first glance and at least in part, a mathematical machine for predicting the behaviors of microscopic particles — or, at least, of the measuring instruments we use to explore those behaviors — and in that capacity, it is spectacularly successful: in terms of power and precision, head and shoulders above any ...

This is the first course in the undergraduate Quantum Physics sequence. It introduces the basic features of quantum mechanics. It covers the experimental basis of quantum physics, introduces wave mechanics, Schrödinger’s equation in a single dimension, and Schrödinger’s equation in three dimensions. The …. Show more.

Quantum mechanics is a branch of physics that explains the behavior of particles at the atomic and subatomic scale. Learn about wave-particle duality, quantization, quantum computers, and more with examples and illustrations.

The history of quantum mechanics is a fundamental part of the history of modern physics. The major chapters of this history begin with the emergence of quantum ideas to explain individual phenomena—blackbody radiation, the photoelectric effect, solar emission spectra—an era called the Old or Older quantum theories. [1]

Just as you can only buy shoes in multiples of half a size, so energy only comes in multiples of the same "quanta" — hence the name quantum physics. The quanta here is the Planck constant,...

Learn the basics of quantum mechanics, the branch of physics that deals with the behavior of matter and light on a subatomic and atomic level. Find out the history, formulas, applications, and FAQs of quantum mechanics.

Learn the basic concepts and postulates of quantum mechanics, such as operators, eigenfunctions, representations, commutation, uncertainty, and Schrodinger equation. This chapter introduces the mathematical tools and principles for describing the behaviour of matter at the atomic and molecular level.