YITP-RIKEN iTHEMS Molecule-type Workshop 2020


Link to recorded presentations

You can access recorded talks from here.


 Recently, there have been significant developments in theoretical techniques/frameworks to tackle non-perturbative aspects of quantum field theory (QFT) such as the resurgence theory, the Lefschetz thimble method, ’t Hooft anomaly matching, and novel lattice setups. Such developments are still growing very rapidly and making fruitful connections not only among physicists involved in fields with broad energy scales but also with mathematicians. These developments would enable us to unveil rich and exciting physics of QFT in the non-perturbative regime. It is of primary importance to hold a workshop for researchers in various fields related to the topics to get together and overview/share the recent progresses, to discuss future directions, and to seek for possible new collaborations bridging various fields of physics/mathematics.

(This is a YITP molecule-type workshop supported by Yukawa Institute for Theoretical Physics and RIKEN iTHEMS.)


  • Resurgence theory
  • Adiabatic continuity
  • Lefschetz thimble
  • Exact-WKB analysis
  • ’t Hooft anomaly matching
  • Lattice field theory
  • Various physical applications


  • 2020 9/7 (Mon.) - 2020 9/25 (Fri.)


    YITP Kyoto University, Zoom and Mozilla Hubs

Invited Lecturers (*: Online participants)

  • Aleksey Cherman* (University of Minnesota): "Large N, small N, and adiabatic continuity"
  • Gerald Dunne* (University of Connecticut): "Resurgence, Phase Transitions and Large N"
  • Mithat Ünsal* (North Carolina State University): "Semi-classics, adiabatic continuity and resurgence in quantum theories"

Invited Speakers

  • Toshiaki Fujimori (Keio University): "Bions in large-N sigma models"
  • Yasuyuki Hatsuda (Rikkyo University): "Spheroidal harmonics and Nekrasov's function"
  • Masazumi Honda (YITP, Kyoto University): "Black hole microstate counting and Picard-Lefschetz theory"
  • Okuto Morikawa (Kyushu University): "Perturbative ambiguities in compactified spacetime and resurgence structure"
  • Naohisa Sueishi (Nagoya University): "On exact-WKB analysis, resurgent structure, and quantization conditions"
  • Masahito Yamazaki (Kavli IPMU, University of Tokyo): "Large N and Small N in Yang-Mills"

Registration information

We are planning to have some online poster sessions and encourage participants to give a poster presentation (we will also prepare several online discussion rooms throughout the workshop). Please submit the title and abstract in the registration page.
The registration deadline is 8/24 (Mon.) for poster presentations, and 9/4(Fri) for online paticipants.


  • Masaru Hongo (University of Illinois at Chicago)
  • Tatsuhiro Misumi (Akita University): Chair person
  • Shigeki Sugimoto (YITP, Kyoto University)
  • Yuya Tanizaki (YITP, Kyoto University)
  • Hidetoshi Taya (Keio University)