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Elementary Particle Theory Lab (Ito-Imamura Lab)
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A theoretical lab that explores a unified theory of elementary particles.
AboutAbout the lab
Exploring a unified theory of elementary particles
The Elementary Particle Theory Lab takes a theoretical approach to its research, with the exploration of a unified theory of elementary particles as its theme.
Key topics include superstring theory, quantum field theory, and supersymmetry.
The lab holds seminars that invite researchers from inside and outside the university.
Key terms
- superstring theory
- A theory that treats elementary particles not as points but as extremely small 'strings'
- quantum field theory
- A theoretical framework that treats elementary particles and the forces acting between them on the basis of quantum mechanics and relativity
- supersymmetry
- A hypothetical symmetry thought to link the particles that make up matter with the particles that carry forces
ResearchResearch themes
*Illustrative imageA new way to solve quantum mechanics exactly
In supersymmetric quantum mechanics and conformal field theory, there is a remarkable correspondence that links differential equations with integrable models. Using exact WKB analysis and the thermodynamic Bethe ansatz, the lab studies methods for obtaining quantities such as energies exactly.
*Illustrative imageCounting in field theory with branes
Using branes, the membrane-like objects that appear in superstring theory, one can expand and compute the index, a quantity that counts properties of a quantum field theory. The lab calculates the indices of line operators, which extend like a line, from brane configurations.
*Illustrative imageHawking radiation and string theory
The lab investigates whether effects unique to string theory, which treats particles as strings, appear in Hawking radiation, the emission of particles by black holes. It looks for clues to a theory that unifies gravity and quantum theory.
MembersFaculty
The members of the Elementary Particle Theory Lab consist of faculty, postdoctoral researchers, and doctoral and master's students.As of 2026
- ProfessorKatsushi ItoPublications ↗
- Associate ProfessorYosuke ImamuraPublications ↗
- Assistant ProfessorYoshiyuki Watabiki
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “CalabiYau5” Andrew J. Hanson / CC BY-SA 3.0 (cropped)
- A new way to solve quantum mechanics exactly: “Sine Wave Domain Coloring Corrected” 12root2 / CC BY-SA 4.0 (cropped)
- Counting in field theory with branes: “Calabi-Yau” Lunch / CC BY-SA 2.5 (cropped)
- Hawking radiation and string theory: “Black hole - Messier 87” Event Horizon Telescope / CC BY 4.0 (cropped)
- Related lab (Yamaguchi Lab): “WMAP 2012” NASA / WMAP Science Team / Public domain (cropped)
- Related lab (Kazama Lab): “Xenon-glow” Jurii / CC BY 3.0 (cropped)
- Related lab (Kuze Lab): “Views of the LHC tunnel sector 3-4, tirage 2” Maximilien Brice (CERN) / CC BY-SA 3.0 (cropped)
- Related lab (Jinnouchi Lab): “CERN LHC ATLAS Detector” SimonWaldherr / CC BY-SA 4.0 (cropped)
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