quantumspins
Quantum spins describe intrinsic angular momentum of elementary particles and composite systems, distinct from orbital angular momentum, and are characterized by the spin quantum number s with projections m_s ranging from -s to +s.
In spin-1/2 systems, states form a two-level basis; spin operators are S_i = (ħ/2) σ_i, where σ_i are
Measurements yield discrete outcomes corresponding to eigenvalues of the spin projection along a chosen axis. The
Entanglement and quantum information: spins serve as qubits; two or more spin systems can be entangled. Spin
In condensed matter, collective spin excitations called magnons emerge from ordered spin systems; exchange interactions produce
In particle physics, particles with half-integer spin are fermions, while integer spin denotes bosons; the spin-statistics