antisymmetric system
21Vacuous truth — A vacuous truth is a truth that is devoid of content because it asserts something about all members of a class that is empty or because it says If A then B when in fact A is false. For example, the statement all cell phones in the room are turned …
22Spin (physics) — This article is about spin in quantum mechanics. For rotation in classical mechanics, see angular momentum. In quantum mechanics and particle physics, spin is a fundamental characteristic property of elementary particles, composite particles… …
23Quantum chromodynamics — Standard model of particle physics Standard Model …
24Exterior algebra — In mathematics, the exterior product or wedge product of vectors is an algebraic construction generalizing certain features of the cross product to higher dimensions. Like the cross product, and the scalar triple product, the exterior product of… …
25Molecular term symbol — In molecular physics, the molecular term symbol is a shorthand expression of the group representation and angular momenta that characterize the state of a molecule, i.e. its electronic quantum state which is an eigenstate of the electronic… …
26Covariant formulation of classical electromagnetism — Electromagnetism Electricity · …
27Fermi hole — The idea of a Fermi hole requires some background in the idea of anti symmetrized wavefunctions. The Pauli exclusion principle is the rule that no more than two electrons can be in the same orbital. The rule traces to a deep algebraic property of …
28Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …
29Differentiable manifold — A nondifferentiable atlas of charts for the globe. The results of calculus may not be compatible between charts if the atlas is not differentiable. In the middle chart the Tropic of Cancer is a smooth curve, whereas in the first it has a sharp… …
30Mathematical descriptions of the electromagnetic field — There are various mathematical descriptions of the electromagnetic field that are used in the study of electromagnetism, one of the four fundamental forces of nature. In this article four approaches are discussed. Contents 1 Vector field approach …
