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| classes:2009:fall:phys4101.001:q_a_1120 [2009/11/30 08:58] – x500_bast0052 | classes:2009:fall:phys4101.001:q_a_1120 [2009/12/19 17:15] (current) – x500_sohnx020 | ||
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| On page 182 Griffiths discusses the Stern-Gerlach experiment, and uses the specific case of the silver atom to show that the net spin is s=1/2. This net spin comes from the unpaired valence electron. What happens when the valence contains a pair (or pairs) of electrons, but no unpaired electrons? Will there be no beam splitting in such a situation? | On page 182 Griffiths discusses the Stern-Gerlach experiment, and uses the specific case of the silver atom to show that the net spin is s=1/2. This net spin comes from the unpaired valence electron. What happens when the valence contains a pair (or pairs) of electrons, but no unpaired electrons? Will there be no beam splitting in such a situation? | ||
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| + | ====Jake22 11/30 18:34==== | ||
| + | In the Stern-Gerlach experiment, why must we have a beam of relatively heavy atoms in order to construct localized wave packets and treat the motion in terms of classical particle trajectories? | ||
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| + | === Blackbox 19:10 === | ||
| + | The experiment can be used to demonstrate that electrons and atoms have intrinsically quantum properties, and how measurement in quantum mechanics affects the system being measured. I think that the purpose of relatively heavy atoms are to prevent the gross deflection of the orbit of a charged particle in a magnetic field and bring out the spin-dependent effect. | ||
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