Spin is a fundamental property of particles in quantum physics. It is an intrinsic angular momentum. In contrast to classical angular momentum, which results from the motion of a body (like a figure skater), spin is an inherent property of particles such as [[Electron|electrons]], [[Proton|protons]] and [[Neutron|neutrons]] that does not depend on rotation in the classical sense. Spin influences the magnetic behavior of particles and plays a crucial role in quantum mechanics. You can imagine it as an arrow pointing in a certain direction. Importantly, spin can store quantum information, a bit like the [[Polarization|polarization]] of [[Photon|photons]]. The easiest example is the spin of an [[Electron|electron]]. It can only take two values, up or down. The electronic spin forms a [[Qubit|two-level system]] which can be used as a [[Qubit|qubit]]. The electron spin is used in practice in [[Platform - Quantum Dots|quantum dots]]. >[!read]- Further Reading >- [[Electron]] >- [[Stern-Gerlach Experiment]] >[!ref]- References