== Lecture Notes ==

 * '''Lecture 19''', ~-Dec 5-~: <<la(L19-Adiabatic-theorem+.pdf, "Adiabatic theorem, Berry's phase, AB effect")>>

 * '''Lecture 18''', ~-Dec 3-~: <<la(L18-Born-approximation.pdf, "Born approximation")>>

 * '''Lecture 17''', ~-Nov 26-~: <<la(L17-Partial-wave-analysis.pdf, "Partial wave analysis")>>

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 * <<color("Correction:")>> Missing $4\pi$ (red) inserted into Eq. 17.27.&mdash;~-''<<DateTime(2013-12-05T10:59:20-0800)>>''-~
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 * '''Lecture 16''', ~-Nov 21-~: <<la(L16-Scattering.pdf, "Scattering")>>

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 * <<color("Corrections:")>> Page 5, the 6th line from bottom: differential &rarr; total.  Page 6, the 2nd line of Sec 16.3: energy is omitted.&mdash;~-''<<DateTime(2013-11-21T12:31:17-0800)>>''-~
 }}}

 * '''Lecture 15''', ~-Nov 19-~: <<la(L15-Emission-Absorption.pdf, "The absorption and emission of photon; Stimulated emission")>> 

 * '''Lecture 14''', ~-Nov 14-~: <<la(L14-Light-and-matter.pdf, "The interaction of light and matter")>>

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 * <<color("Addition:")>> "(except at one point, the origin)" added 3 lines below Eq. 14.10.&mdash;~-''<<DateTime(2013-12-05T13:27:50-0800)>>''-~
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 * '''Lecture 13''', ~-Nov 12-~: <<la(L13-Perturbation-TD.pdf, "Time-dependent perturbation (Fermi's golden rule)")>>

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 * <<color("Changes:")>> Points 2,3 of page 5.&mdash;~-''<<DateTime(2013-11-12T01:57:00-0800)>>''-~

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 * '''Lecture 12''', ~-Nov 7-~: <<la("L12-Two-Level-Problem-TD.pdf", "The two level problem with $\hat H(t)$")>>

 * '''Lecture 11''', ~-Oct 31-~: <<la("L11-WKB.pdf", "The Bohr-Sommerfeld quantization rule")>>

 * '''Lecture 10''', ~-Oct 29-~: <<la("L10-WKB.pdf", "The WKB (Wentzel, Kramers, Brillouin) approximation")>>

 * '''Lecture 9''', ~-Oct 24-~: <<la("L09-Variational-Principle.pdf", "Variational principle")>>

 * '''Lecture 8''', ~-Oct 22-~: <<la("L08-Hydrogen-like-atom.pdf", "Hydrogen-like atom (cont.)")>>
 
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 * <<color("Corrections:")>> Quite a few small corrections after proof-reading.&mdash;~-''<<DateTime(2013-10-22T12:37:15-0700)>>''-~
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 * '''Lecture 7''', ~-Oct 17-~: <<la("L07-Symmetry-Hydrogen-like-atom.pdf", "Hydrogen-like atom")>>

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 * <<color("Addition:")>> Page 8, a new paragraph at the end of Section 7.4.&mdash;~-''<<DateTime(2013-10-28T14:50:34-0700)>>''-~
 * <<color("Corrections:")>> Page 8, before Eq. 7.13: $m_e^4c^4 \rightarrow m_e^2c^4$, and $m_ec^4 \rightarrow m_ec^2$.&mdash;~-''<<DateTime(2013-10-24T13:10:54-0700)>>''-~
 * <<color("Additions:")>> Footnotes 7 and 8.&mdash;~-''<<DateTime(2013-10-22T12:07:21-0700)>>''-~

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 * '''Lecture 6''', ~-Oct 15-~: <<la("L06-Symmetry.pdf", "Symmetry")>>

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 * <<color("Addition:")>> A note added in page 9.&mdash;~-''<<DateTime(2013-10-14T18:39:27-0700)>>''-~

 * <<color("Correction:")>> Section 6.3.3 is revised, to explicitly add vector notations for the angular momentum vectors, and an important correction: &ldquo;total spin&rdquo; &rarr; &ldquo;total angular momentum&rdquo; in the second paragraph.&mdash;~-''<<DateTime(2013-10-10T16:46:44-0700)>>''-~

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 * '''Lecture 5''', ~-Oct 10-~: <<la("L05-Perturbation-TI-D.pdf", "Time-independent perturbation---examples for the degenerate case---and Symmetry")>>

 * '''Lecture 4''', ~-Oct 8-~: <<la("L04-Perturbation-TI-D.pdf", "Time-independent perturbation: examples for the non-degenerate case and the theory for the degenerate case")>>

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 * <<color("Addition:")>> Footnote 4: the word &ldquo;topology&rdquo; is added to reflect many recent research results on topological effects.&mdash;~-''<<DateTime(2013-10-10T16:23:14-0700)>>''-~
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 * '''Lecture 3''', ~-Oct 3-~: <<la("L03-Perturbation-TI-ND.pdf", "Perturbation theory (time-independent, non-degenerate)")>>

 * '''Lecture 2''', ~-Oct 1-~: <<la("L02-Formalism.pdf", "Representation, Symmetry")>>

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 * <<color("Change:")>> Page 14: Notations in the Bart box are consistent with the lecture, now.&mdash;~-''<<DateTime(2013-10-03T13:33:38-0700)>>''-~
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 * '''Lecture 1''', ~-Sep 26-~: <<la("L01-Formalism.pdf", "QM Formalism")>>