★100 POINTS★
★ QUANTUM MECHANICS ★
WHAT IS SPIN? DON'T TRY TO GIVE THE BOOKISH DEFINITION.
EXPLAIN WHY FERMIONS HAVE 1/2 SPIN AND BOSONS HAVE 0, 1 OR 2 SPIN?
AND WHAT DOES THIS MEANS?
★ CONTENT QUALITY REQUIRED ★
Answers
WHAT IS SPIN? EXPLAIN WHY FERMIONS HAVE 1/2 SPIN AND BOSONS HAVE 0, 1 OR 2 SPIN?
AND WHAT DOES THIS MEANS?
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Spin is generally a typical motion, angular momentum. But in quantum physics, physicists refer spin as an intrinsic form of angular momentum.
Intrinsic means it exists by particle own. Why intrinsic angular momentum?
We know we're talking about quantum particles, like quarks, leptons etc. So complex probabilities made by strings (or so called mathematical wave function :p) responsible for this spin.
Till now scientists are making new theories about spin, but you may find different concepts on why 'spin'?
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EXPLAIN WHY FERMIONS HAVE 1/2 SPIN AND BOSONS HAVE 0, 1 OR 2 SPIN?
Refer spin - statistics theorem,
Bosons are fundamental particles having integral spin (like you specified 1,2,3..).
Wave function of these particles is symmetrical. In common books, you might read if we swap the two boson particles, wavefunction doesn't change.
Fermions are fundamental particles having fractional spin(like 1/2..).
Wave function of these particles is antisymmetrical. In common books, you might read if we swap the two Fermion particles, wavefunction will change.
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Well, The brief history of time! Hawking gave the best explanation about it, but don't confuse with particle's motion and its observations from different sides (as explained by hawking).
It's only for basics movement is generally spin related with wavefunction, not for general motion.
Mathematics is a language of physics (you know better :D) , you will find 100+ theories about this spin in theories. So suggest you to start high level mathematics.
In quantum mechanics and particle physics, spin is an intrinsic form of angular momentum carried by elementary particles, composite particles, and atomic nuclei. Spin is one of two types of angular momentum in quantum mechanics, the other being orbital angular momentum.