Physics 139B UCSC
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| == Exam == We have our midterm coming up next Tuesday (Nov 5). This will be the only in-class exam, as the final exam will be a take-home exam. Here are some resources. * <<la("Review for Midterm.pdf", "Summary of the review session (Nov 2)")>>. * In addition to what I summarized here, we also discussed problem 6 of the practice midterm briefly. Here is what I said. The setup here boils down to the initial state at $t = 0$, which evolves in time, as governed by the Hamiltonian. The time evolution for this Hamiltonian (constant B field coupling to spin) corresponds to the rotation of the spin around the direction of the magnetic field. Initially, the spin is up along the $z$ direction. So, for part (a), there won't be any change to the state (except for a phase accumulation). For part (b), the state will rotate in the $yz$ plane with the Larmor precession frequency. You must do the math to illustrate these points, using the same math that we used in early homework problems. * <<la("Last-midterm.pdf", "Last year's midterm exam")>>: There were a bit too many problems. I think this year's exam should be about two problems less. * <<la("Review-last-midterm.pdf", "The review summary of the last year's review for the midterm")>>. |
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* '''Quiz 3''', ~-Oct 29-~: <<la("Q03-Symmetry+.pdf", "Virial theorem, Symmetry")>> ~-(<<la("Q03-Symmetry+-w-Sols.pdf", "with solutions")>>)-~ |
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| * '''Homework 4''', ~-due Oct 29-~: <<la("H04-Hydrogen-like-atom.pdf", "Symmetry, Hydrogren-like atom")>> | * '''Homework 5''', ~-due Nov 12-~: <<la("H05-VP-WKB.pdf", "Variational principle, WKB, Bohr-Sommerfeld")>> * '''Homework 4''', ~-due Oct <<color(30)>>-~: <<la("H04-Hydrogen-like-atom.pdf", "Symmetry, Hydrogren-like atom")>> ~-(<<la("H04-Hydrogen-like-atom-w-Sols.pdf", "with solutions")>>)-~ |
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| * '''Homework 3''', ~-due Oct 22-~: <<la("H03-Symmetry+.pdf", "Symmetry+")>> | * '''Homework 3''', ~-due Oct 22-~: <<la("H03-Symmetry+.pdf", "Symmetry+")>> ~-(<<la("H03-Symmetry+-w-Sols.pdf", "with solutions")>>)-~ |
Exam
We have our midterm coming up next Tuesday (Nov 5). This will be the only in-class exam, as the final exam will be a take-home exam. Here are some resources.
Summary of the review session (Nov 2).
In addition to what I summarized here, we also discussed problem 6 of the practice midterm briefly. Here is what I said. The setup here boils down to the initial state at $t = 0$, which evolves in time, as governed by the Hamiltonian. The time evolution for this Hamiltonian (constant B field coupling to spin) corresponds to the rotation of the spin around the direction of the magnetic field. Initially, the spin is up along the $z$ direction. So, for part (a), there won't be any change to the state (except for a phase accumulation). For part (b), the state will rotate in the $yz$ plane with the Larmor precession frequency. You must do the math to illustrate these points, using the same math that we used in early homework problems.
Last year’s midterm exam: There were a bit too many problems. I think this year's exam should be about two problems less.
The review summary of the last year’s review for the midterm.
Quiz
Quiz 3, Oct 29: Virial theorem, Symmetry (with solutions)
Quiz 2, Oct 22: Perturbation (with solutions)
Quiz 1, Oct 15: Formalism (with solutions)
Homework
Homework 5, due Nov 12: Variational principle, WKB, Bohr-Sommerfeld
Homework 4, due Oct 30: Symmetry, Hydrogren-like atom (with solutions)
Addition: Prob. 1: some footnote about the mathematical group, since some students asked about it after class.—4:36PM, Oct 22, 2013
Homework 3, due Oct 22: Symmetry+ (with solutions)
Homework 2, due Oct 15: Perturbation (with solutions)
Homework 1, due Oct 8: The basics of QM (with solutions)
Addition: 3(a): “and”—2:28PM, Oct 07, 2013
Change: 6(a): the wave function is → the corresponding state is given by.—10:47AM, Oct 04, 2013