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- DictionaryQuan·tum phys·ics
plural
- 1. the branch of physics concerned with quantum theory: "quantum physics allows for particles to be in two states at the same time"
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Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms.: 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science.
Mar 13, 2024 · Quantum, in physics, discrete natural unit, or packet, of energy, charge, angular momentum, or other physical property. Light, for example, appearing in some respects as a continuous electromagnetic wave, on the submicroscopic level is emitted and absorbed in discrete amounts, or quanta.
Apr 19, 2024 · 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.
Quantum mechanics. quantum mechanics and probability. Brian Greene explains how the revolutionary idea of quantum mechanics is that reality evolves through a game of chance described by probabilities. This video is an episode in his Daily Equation series. (more) See all videos for this article.
Science. Physics library. Unit 17: Quantum Physics. About this unit. This unit is part of the Physics library. Browse videos, articles, and exercises by topic. Photons. Learn. Photon Energy. Photon Momentum. Photoelectric effect. Atoms and electrons. Learn. De Broglie wavelength. Quantum Wavefunction. Atomic Energy Levels.
Quantum mechanics is the study of matter and its interactions with energy on the scale of atomic and subatomic particles. By contrast, classical physics explains matter and energy only on a scale familiar to human experience, including the behavior of astronomical bodies such as the moon.
In physics, a quantum (pl.: quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. Quantum is a discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents.
