Search for tag: "matrix"
PHYSICS739_AngularMomentum7Wigner-Eckart theorem. Note: I previously thought I had lost the recording for PHYSICS739_AngularMomentum6, but I think I found it (it is on macvideo)
From DUNCAN O'DELL
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PHYSICS739_AngularMomentum4Started studying the addition of angular momentum using the lowering operator method. Introduced direct sums and direct products of Hilbert spaces for the coupled and uncoupled bases, respectively.
From DUNCAN O'DELL
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PHYSICS739_AngularMomentum3Completed Euler angles, started considering rotation operators for general values of j.
From DUNCAN O'DELL
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PHYSICS739_approximation_Methods3Showed how to find transition amplitudes from the Dyson series. Began analyzing 1st order perturbations constant in time except for being switched on at t=t0.
From DUNCAN O'DELL
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PHYS739_Approximation_Methods1Started perturbation theory. Gave example of quadratic Stark shift of ground state.
From DUNCAN O'DELL
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