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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
Sep 17, 2022 · Quantum mechanics explains the aspects of nature at ordinary (macroscopic) scales but extends this description to the small (atomic and subatomic) scales. There are additional quantum mechanics resources in the Physical & Theoretical Chemistry section of the Chemistry Library.
4 days ago · Quantum mechanics is the study of the dynamics of particles at its most fundamental level. The state of a particle, such as its position or momentum, is described by a statistical distribution ...
A fundamental concept in quantum mechanics is that of randomness, or indeterminacy. In general, the theory predicts only the probability of a certain result. Consider the case of radioactivity. Imagine a box of atoms with identical nuclei that can undergo decay with the emission of an alpha particle. In a given time interval, a certain fraction ...
Sep 12, 2022 · 7.1: Wavefunctions. In quantum mechanics, the state of a physical system is represented by a wave function. In Born’s interpretation, the square of the particle’s wave function represents the probability density of finding the particle around a specific location in space.
Quantum physics is the result of applying the framework of quantum mechanics to di erent physical phenomena. We thus have Quantum Electrodynamics, when quantum mechanics is applied to electromagnetism, Quantum Optics, when it is applied to light and optical devices, or Quantum Gravity, when it is applied to gravitation.
Erwin Schrödinger proposed the quantum mechanical model of the atom, which treats electrons as matter waves. , represents the probability of finding an electron in a given region within the atom. An atomic orbital is defined as the region within an atom that encloses where the electron is likely to be 90% of the time.
