Introductory Quantum Mechanics II

Video Lectures

Displaying all 4 video lectures.
Lecture 1
Introduction to the Spectroscopic Effective Hamiltonian
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Introduction to the Spectroscopic Effective Hamiltonian
The Born-Oppenheimer approximation and matrix elements of terms in the effective molecular Hamiltonian that violate the BO approximation. Vibration, rotation, spin-orbit, interelectronic interaction. Hund's coupling cases.
Lecture 2
Spectroscopic Pertubations, Predissociation, and Autoionization
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Spectroscopic Pertubations, Predissociation, and Autoionization
Introduction to dynamical processes.
Lecture 3
Semiclassical Methods for Calculating Vibrational Overlap Integrals
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Semiclassical Methods for Calculating Vibrational Overlap Integrals
All coupling processes are mediated by vibrational overlap integrals, which are computed numerically. Semiclassical calculation of overlaps reveals physical factors controlling computed values: the length of the stationary phase region is controlled by the slopes of the potential curves at the intersection and the velocity in the crossing region.
Lecture 4
Wavepackets and Landau-Zener
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Wavepackets and Landau-Zener
What happens in the vicinity of a curve crossing?