This is so far the best physics instructor I have encountered here. The lecture is very clear, and the homework is very easy. I really enjoyed final paper, where I can explore a topic of my own choice. I do wish to submit homework every week instead of taking a quiz because if there is a quiz based on homework, I will finish the homework even though I don't need to submit it. The hardest part of this course is giving peer reviews of the final paper, which requires critical thinking skills, and I think this is important. With this instructor, you can learn concept with a significant mastery and negligible stress. The other advice is that the pace of the course can be faster. Since the instructor gives such great lectures, I want to learn more from him.

This is so far the best physics instructor I have encountered here. The lecture is very clear, and the homework is very easy. I really enjoyed final paper, where I can explore a topic of my own choice. I do wish to submit homework every week instead of taking a quiz because if there is a quiz based on homework, I will finish the homework even though I don't need to submit it. The hardest part of this course is giving peer reviews of the final paper, which requires critical thinking skills, and I think this is important. With this instructor, you can learn concept with a significant mastery and negligible stress. The other advice is that the pace of the course can be faster. Since the instructor gives such great lectures, I want to learn more from him.

absolutely loved professor kogar! it was very intimidating at first (the subject matter itself), however, professor kogar made this class engaging, and was super approachable. if you take this class you absolutely should go to office hours as he will make a point of helping you out and remember who you are.

don't be intimidated if it feels difficult at first! i fully thought i was going to end up failing and ended up with an a+. he is the best

I took the quantum mechanics seminar with Dr. Kogar in fall 2023, the first quarter it was offered. We went through an introductory book that was very easy to understand without any math/physics background, read one chapter per week (about 10-12 pages), and discussed our interpretations during the seminar. There was a paper at the end but it was easy and very open-ended. Kogar did a great job explaining everything and piqued my interest in quantum mechanics. 10/10, would recommend!

This is a late review after I have taken a lot more classes and had a much deeper understanding of condensed matter physics.
The course is divided into two parts, Integer Quantum Hall Effect and Superconductivity (London Equations, Ginzburg-Landau theory, and Josephson Effect). Prof. Kogar has done a great job introducing these two topics to guys who only know basic solid state physics. He had a well-written lecture note instead of textbooks and the lectures were illustrated in an "experimentalist" way (no long derivations and focus on the physical picture).
Apparently, given the time (10 weeks only) and level (undergraduate) restrictions, he had to cheat on something, but he was always happy to chat about them in OH or through email (see if you can find them!). You can master the materials as long as you work out the excellent problem sets by yourself. It's really well written that you feel like you are guided step-by-step to tackle a complicated problem.
My only concern (not for this course) is, the Physics 140 series here did not cover enough materials for students to get prepared for CM Physics in graduate school. For example, I think second quantization is quite useful.
Overall, I really thank Prof. Kogar and his course for telling me the picture of these two really important phenomena in CM Physics without bothering from the long and hard mathematical derivations, and I strongly recommend every student who is interested in CM physics take this course.