Quantum Spin
One of the intrinsic properties of particles in quantum mechanics, represented by half-integer or integer values, that determines the direction of a particle's magnetic field. The electron spin quantum number is 1/2, and measurement yields only two outcomes: spin-up (+1/2) or spin-down (−1/2). This discrete behavior contrasts fundamentally with classical angular momentum, which varies continuously.
Timeline (last 90 days)
In 1926, two Dutch physicists discovered that particles possess the property of quantum spin in addition to mass, charge, and magnetism.
Quantum spin refers to an intrinsic directionality that affects particle behavior, and nothing is actually spinning.
In the 1930s, John H. Van Vleck discovered that the property of quantum spin answered questions about magnetism.
All Facts (3)
Quantum spin refers to an intrinsic directionality that affects particle behavior, and nothing is actually spinning.
50%UnverifiedIn 1926, two Dutch physicists discovered that particles possess the property of quantum spin in addition to mass, charge, and magnetism.
50%UnverifiedIn the 1930s, John H. Van Vleck discovered that the property of quantum spin answered questions about magnetism.
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