Quantum Field Theory II (QFT)

U. Tokyo undergraduate/graduate course, 2024 autumn semester

This course corresponds
to "Quantum Field Theory II" (code: 0515071) in the UTokyo Course Catalogue for undergraduate students, and
to "Quantum Field Theory" (code: 35603-0119) for graduate students.

Objectives

Prerequisite: equivalent of QM III (2nd quantization), QFT I (free field quantization) and Quantum Optics (photon quantization, atomic transition). We assume that the students in the classroom are familiar with free field quantization (incl. derivation of the propagator (Green function)) from Week 3 in this semester.

    Message for graduate students enrolling in October: The QFT I course (summer semester) at U. Tokyo is exclusively for undergraduate students, and the lecture is delivered in Japanese. If your undergraduate curriculum did not cover an equivalent of QFT I at U. Tokyo Physics, then you need to make an effort on your own by reading appropriate chapters of QFT textbooks to fill the gap: for example, Peskin Schroeder sections 2, 3, 4.1--4.4, or Altland Simons sections 1.4, 2.1, 2.2, 5.1.

Materials in the first two weeks are not based on those prerequisites. So, it is enough to have covered those materials during summer, or at least by the Week 3. The instructor (TW) is happy to provide support/advice for that process.

Hours and Rooms: Mondays 14:55--16:40 at room ???, Rigakubu 1 Goukan (Hongo Campus)
Office hour:           Mondays 16:40--17:40.??

Instructor: Taizan Watari,           Kavli IPMU, Kashiwa Campus
TA:           not assigned

Language: explanations in Eniglish. Questions in Japanese are also welcome during the class.

Announcement:
                (1) All the homework problems, letcture notes etc. will be posted in the U. Tokyo Learning Management System (UT ITC-LMS), not here.
                (2) This webpage is used for announcements before the semester starts, especially toward new graduate students enrolling in October, who are given access to the UTokyo ITC-LMS only after enrollment. During the semester, the ITC-LMS will be updated, not here.
                (3) This course in the 2024/25 season will be quite similar to the same course in the 2020/21 season. The course page four years ago is here, where lecture notes and homework problems are found.

Plan of the progress
1. path integral in quantum mechanices: [2 weeks]
2. introduction, S-matrix etc., loop expansion: [2 weeks]
3. tree-level scattering processes: [3 weeks]
4. bound states: [2 weeks]
5. unitarity: [1 week]
6. low-energy effective theory: [1 week]
7. path integral in QFT: [3 weeks]
8. introduction to 1-loop computation: [1 week]

updated on Mar. 04, 2024.