classes:2009:fall:phys4101.001:q_a_1219
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| classes:2009:fall:phys4101.001:q_a_1219 [2009/12/19 00:53] – mattsen | classes:2009:fall:phys4101.001:q_a_1219 [2009/12/19 17:26] (current) – x500_sohnx020 |
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| ===Anaximenes - 00:40 - 12/19/09=== | ===Anaximenes - 00:40 - 12/19/09=== |
| Near as I can tell, it should just be <math>\psi_a (x_1)\psi_b (x_2) - \psi_b (x_1)\psi_a (x_2)</math>. Is that what you were thinking? Or do you think the problem wants us to multiply in the spin wavefunction? E.g., <math>\psi_a (x_1)\psi_b (x_2)[\chi_+ (x_1) \chi_- (x_2) - \chi_- (x_1) \chi_+ (x_2)]</math>? (I'm not especially certain that expression actually means anything.) | Near as I can tell, it should just be <math>\psi_a (x_1)\psi_b (x_2) - \psi_b (x_1)\psi_a (x_2)</math>. Is that what you were thinking? Or do you think the problem wants us to multiply in the spin wavefunction? E.g., <math>\psi_a (x_1)\psi_b (x_2)[\chi_+ (x_1) \chi_- (x_2) - \chi_- (x_1) \chi_+ (x_2)]</math>? (I'm not especially certain that expression actually means anything.) |
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| | ====Esquire 12/19 (Age of Final)==== |
| | What did you guys think about the final? I thought it wasn't terrible, thought I didn't get a few things. |
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| | ===Anaximenes - 15:30 - 12/19/09=== |
| | I thought it was good. All of it was reasonable (not incredibly easy or difficult), but it covered a wide range of topics. What did everyone put for #6? Those open-ended questions always take me the longest. I described how the graph shows the Zeeman effect is dominant at high <math>\beta</math> but Fine Structure is dominant at low <math>\beta</math>; that of the 8 energy eigenvalues, 4 had simultaneous eigenstates of j, <math>j_z</math>, <math>m_l</math>, and <math>m_s</math>; and that the two middle eigenvalues have <math>\displaystyle \lim_{\beta \rightarrow \infty} \lambda = -3\gamma</math> (i.e., they become degenerate). |
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| | === Blackbox 12/19 === |
| | I'm just wondering whether these kinds of questions and answers or opinions about the exams are also counted in the total. |
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| ====Links==== | ====Links==== |
classes/2009/fall/phys4101.001/q_a_1219.1261205593.txt.gz · Last modified: 2009/12/19 00:53 by mattsen