Professor Young is an incredible lecturer and gives creative, challenging, and enjoyable homework problems that test your understanding of the subject and occasionally explore more advanced topics in the field (e.g. coherent states in quantum optics). His exams are notoriously hard; do lots of practice problems and be efficient come test day.

One of the best lecturers I've had so far. Very knowledgable and can answer any question thoroughly. Homeworks are hard and so are the tests, but he helps you learn the material very well. Quantum is always going to be difficult but he makes the ride enjoyable.

Good enough lecturer. Very good lecture notes, and tough exams. Attendance not required; I went to lecture a grand total of 4 times during the quarter, but was still able to keep up due to the good lecture notes.

Prof. Young is a great lecturer. He really knows how to get his points across. If you pay attention, read the textbook, and complete the homework you will do fine. He rarely fails students. His exams are as hard as everyone says (expect 40-50% averages), but the curves are very generous in the end.

He is so unpredictable. Course content is not well-organized. DOn't expect what you learnt will appear on the exam. What makes his exam diffcult is that you never see the concepts or learn them before. Try your best to avoid. You learn almost nothing, and get a terrible grade.

Professor Young is obviously passionate about the material he is teaching. His lectures are great, and the homework/discussion section problems (specifically the ones not from the textbook) are really enjoyable. On the other hand, his exams are tough. He does a generous curve at the end of quarter, and it seems that most people end up fine.