enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Spin quantum number - Wikipedia

    en.wikipedia.org/wiki/Spin_quantum_number

    The phrase spin quantum number refers to quantized spin angular momentum. The symbol s is used for the spin quantum number, and m s is described as the spin magnetic quantum number [3] or as the z-component of spin s z. [4] Both the total spin and the z-component of spin are quantized, leading to two quantum numbers spin and spin magnet quantum ...

  3. Spin (physics) - Wikipedia

    en.wikipedia.org/wiki/Spin_(physics)

    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.

  4. Quantum number - Wikipedia

    en.wikipedia.org/wiki/Quantum_number

    Quantum number. Notation for conserved quantities in physics and chemistry. Single electron orbitals for hydrogen-like atoms with quantum numbers n = 1, 2, 3 (blocks), ℓ (rows) and m (columns). The spin s is not visible, because it has no spatial dependence. Part of a series of articles about.

  5. Spin-1/2 - Wikipedia

    en.wikipedia.org/wiki/Spin-1/2

    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 ...

  6. Mathematical formulation of quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Mathematical_formulation...

    The mathematical formulations of quantum mechanics are those mathematical formalisms that permit a rigorous description of quantum mechanics. This mathematical formalism uses mainly a part of functional analysis, especially Hilbert spaces, which are a kind of linear space. Such are distinguished from mathematical formalisms for physics theories ...

  7. Relativistic quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Relativistic_quantum_mechanics

    In physics, relativistic quantum mechanics (RQM) is any Poincaré covariant formulation of quantum mechanics (QM). This theory is applicable to massive particles propagating at all velocities up to those comparable to the speed of light c, and can accommodate massless particles. The theory has application in high energy physics, [1] particle ...

  8. Selection rule - Wikipedia

    en.wikipedia.org/wiki/Selection_rule

    The wave function of a single electron is the product of a space-dependent wave function and a spin wave function. Spin is directional and can be said to have odd parity. It follows that transitions in which the spin "direction" changes are forbidden. In formal terms, only states with the same total spin quantum number are "spin-allowed". [5]

  9. Wave function - Wikipedia

    en.wikipedia.org/wiki/Wave_function

    Here A = {−s, −s + 1, ..., s − 1, s} is the set of allowed spin quantum numbers and Ω = R 3 is the set of all possible particle positions throughout 3d position space. An alternative choice is α = (s y) for the spin quantum number along the y direction and ω = (p x, p y, p z) for the particle's momentum components.