De meningen ge-uit door medewerkers en studenten van de TU Delft en de commentaren die zijn gegeven reflecteren niet perse de mening(en) van de TU Delft. De TU Delft is dan ook niet verantwoordelijk voor de inhoud van hetgeen op de TU Delft weblogs zichtbaar is. Wel vindt de TU Delft het belangrijk - en ook waarde toevoegend - dat medewerkers en studenten op deze, door de TU Delft gefaciliteerde, omgeving hun mening kunnen geven.

Ninth Lecture Advanced Quantum Mechanics

was about coherent state and could easily be more coherent.  I still think the overall plan was good. Some words, side stories in the beginning. A simple realistic problem formulation: kicking an oscillator. Easy to solve at classical level. Need to sweat at quantum level. Solve. Analyze. Draw a circle. Then discuss coherence and coherent state in the context of laser. To finish: quick Cooper pair box as coherent states of particles.

I’ve started to slip up from very beginning. The citations and discussion of those suddenly appeared banal if not vulgar. Too much attention to beer: the students did not denomstrate any affection with the subject. I’ve felt the introduction that supposed to be both jovial and philosophical has been lost. Tried to compensate this by giving more attention to formulas and developed a time problem. The second half of the lecture has been hurried up, much to misunderstanding and mistrust. It looked like nobody believed me when I get to Cooper pair box.

There was however a question about coherence and coherent state, even before I was going to approach this topic. So I could recall Francis Bacon and his idol of the forum (gosh, I’ve said: daemon of the market, shoudn’t be that clumsy), a subject that in my mind every natural science student should learn by heart. There were more questions: the interaction with the audience was not a total disaster.





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