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Spin (physics) Spin is an intrinsic form of angular momentum carried by elementary particles, and thus by composite particles such as hadrons, atomic nuclei, and atoms. [1][2]: 183 –184 Spin is quantized, and accurate models for the interaction with spin require relativistic quantum mechanics or quantum field theory.
The component of the spin along a specified axis is given by the spin magnetic quantum number, conventionally written m s. [ 1 ] [ 2 ] The value of m s is the component of spin angular momentum, in units of the reduced Planck constant ħ , parallel to a given direction (conventionally labelled the z –axis).
Spin is an electric bicycle-sharing and electric scooter-sharing company. It is based in San Francisco and was founded as a start-up in 2017, launching as a dockless bicycle-sharing system controlled by a mobile app for reservations.
t. e. In quantum mechanics, spin is an intrinsic property of all elementary particles. All known fermions, the particles that constitute ordinary matter, have a spin of 1 2 . [1][2][3] The spin number describes how many symmetrical facets a particle has in one full rotation; a spin of 1 2 means that the particle must be rotated ...
Website. spin.com. ISSN. 0886-3032. Spin (stylized in all caps as SPIN) is an American music magazine founded in 1985 by publisher Bob Guccione Jr. Now owned by Next Management Partners, the magazine is an online publication since it stopped issuing a print edition in 2012. It returned as a quarterly publication in September 2024.
Spin is the fundamental property that distinguishes the two types of elementary particles: fermions, with half-integer spins; and bosons, with integer spins. Photons, which are the quanta of light, have been long recognized as spin-1 gauge bosons. The polarization of the light is commonly accepted as its “intrinsic” spin degree of freedom.
Quantum mechanics. In quantum physics, the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is a relativistic interaction of a particle's spin with its motion inside a potential. A key example of this phenomenon is the spin–orbit interaction leading to shifts in an electron 's atomic energy levels, due to ...
Spin group. In mathematics the spin group, denoted Spin (n), [1][2] is a Lie group whose underlying manifold is the double cover of the special orthogonal group SO (n) = SO (n, R), such that there exists a short exact sequence of Lie groups (when n ≠ 2) The group multiplication law on the double cover is given by lifting the multiplication on .