In recent years, alongside advances in the theoretical understanding of lattice gauge theories in the Hamiltonian formulation and of anomalies, active researches have been carried out on new formulations of lattice fermions from the perspectives of particle physics, condensed matter physics, and mathematics. This workshop brings together researchers from these typically separate communities to promote close discussions of recent developments and to stimulate new conceptual and technical progress.
Formulations of lattice fermions are constrained by the well-known Nielsen–Ninomiya theorem, which prohibits the realization of chiral fermions on the lattice under conditions such as translational invariance and locality. Nevertheless, in recent years, new approaches to lattice fermions that evade this constraint, as well as renewed studies of chiral anomalies, have been actively explored from various viewpoints.
This workshop aims to provide an overview of these developments, clarify the current status and open issues in lattice fermion and anomaly of gauge theories research centered on the Hamiltonian formulation, and foster interactions across disciplines in order to generate new research directions.
⭐️ Registration
The deadline is 17 April 2026.
Applicants are required to create an account on YITP Indico and submit their registration while logged in.
⭐️ Abstract submission
The deadline is 15 May 2026.
There are a limited number of slots for contributed talks.
If the number of submissions exceeds the available slots, some contributions may be assigned to poster presentations.
⭐️ Invited speaker/ key participant：
Shoto Aoki (RIKEN iTHEMS)
Maarten Golterman (San Francisco State U.)*
Yukimi Goto (U.of Tokyo)
Yoshio Kikukawa (U. of Tokyo)
Ryohei Kobayashi (IAS)
Okuto Morikawa (RIKEN, iTHEMS)
Hitoshi Murayama (UC Berkeley/ Kavli IPMU)
Kazutoshi Ohta (Meijigakuin U.)
Yigal Shamir (Tel Aviv U.)
Shu-Heng Shao (MIT)
Hersh Singh (Fermi Lab.)
Ryan Thorngren (UCLA)
Atsushi Ueda (Ghent U.)
Cenke Xu (UCSB)
Daisuke Yamamoto (Nihon U.)
Vladimir A. Zakharov (Lorentz Institute, Leiden U.)
+More..
(*: to be confirmed)
⭐️ Venue:
Panasonic Auditorium, Yukawa Hall, YITP, Kyoto University
⭐️ Organizers：
Sinya Aoki (RIKEN)
Hidenori Fukaya (U. Osaka)
Etsuko Itou (YITP, Kyoto U., Chair)
Tatsuhiro Misumi (Kinki U.)
Atsushi Ueda (Gent U.)
⭐️ Supported by：
JSPS KAKENHI 基盤(S)
No. 23H05439 「QCDから解き明かす重クォークエキゾチック粒子の謎」
(研究代表者：土井 琢身, 分担者： 伊藤 悦子)
JSPS KAKENHI 基盤(B)
No. 25K01001 「第一原理計算で探る有限密度QCD型理論の物性」
(研究代表者：伊藤 悦子)
