(April 8, 2026 16:45) IMI Colloquium in April 2026
We kindly ask all participants to register in advance for the IMI Colloquium, even if attending in person.
Please register using the form below. -> Registration Form
| Date & Time | Wednesday, 8 April 2026 16:45-17:45 |
| Place | IMI Auditorium (W1-D-413) and Live streaming with Zoom |
| Speaker | Hiroshi Suzuki (Faculty of Science, Kyushu University) |
| Title | Exact renormalization group with manifest gauge symmetry and its application to quantum electrodynamics |
| Abstract | The exact renormalization group formulated by Kenneth Wilson serves not only as a tool for analyzing critical phenomena in statistical systems, but also as a framework for constructing quantum field theories in continuous spacetime through the continuum limit around renormalization group fixed points. Traditionally, particle physics has been built upon quantum field theories defined around the Gaussian fixed point that can be analyzed in perturbation theory. However, there is considerable interest in the possibility of employing quantum field theories based on non-perturbative fixed points, which cannot be accessed by perturbation theory, in particle physics. A central challenge in this context is that the conventional exact renormalization group does not manifestly preserve gauge symmetry, which underlies particle physics theories. In this talk, we explain the Gradient Flow Exact Renormalization Group that we have formulated to maintain gauge symmetry manifestly. We then present its application to quantum electrodynamics, the simplest gauge theory. |
| 💻 Participate via Zoom 💻 | ||
| https://us06web.zoom.us/j/81404940505?pwd=dtSdUQUO21j0WH8TQFdtB9ZaCR8Kbf.1 | ||
| Meeting ID ： | 8814 0494 0505 | *We recommend that participants install the Zoom app in advance. (Download-> https://zoom.us) |
| Passcode ： | 178882 | |
Guidelines for Participating in Zoom Meetings
・The account name should be “Full name” in case of the faculty members, or “Student ID number (Last name)” (e.g.：1SC○○○○○A (Last name) in case of students.
・Please understand the host will mute the audience’s sound and camera.
・When you have a question, please use the “Raise hand function” or the “Chat function”. Then, the host will unmute.
IMI Colloquium Organizers
IKEMATSU, Yasuhiko <ikematsu@imi.kyushu-u.ac.jp>
KURATA, Sumito <kurata@imi.kyushu-u.ac.jp>
TAGAMI, Daisuke <tagami@imi.kyushu-u.ac.jp>