Question about microstates and electrons

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SUMMARY

The discussion clarifies that in quantum mechanics, spin-1/2 refers to the spin quantum number of electrons, which allows for spin states of +1/2 or -1/2. It emphasizes that electrons are indistinguishable particles, a fundamental principle in quantum physics. The need for precise terminology is highlighted, specifically the distinction between the magnitude of spin and its z-component, which should be denoted as ##s_z## rather than just ##s##. This precision is crucial for accurate understanding and communication in quantum mechanics.

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Clara Chung
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In 8a) I don't understand the question, does spin = 1/2 mean the magnitude of the spin or the z-component of the spin is 1/2? Can the electrons possesses be any of the spin=1/2 or -1/2? Are the electrons distinguishable?
 
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Spin-1/2 refers to the spin quantum number, so the electrons are free to have their spin point along any direction. On that subject, part (d) is not well formulated: it should specify ##s_z##, not just ##s##.

The electrons are indistinguishable, as stated in the problem. (Generally speaking, quantum particles should always be considered indistinguishable unless specified otherwise or due to a particular physical situation, like atoms in a crystal.)
 

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