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Morinari Condensed Matter Theory Lab
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A lab that tackles the mysteries of high-temperature superconductivity and Dirac electrons in solids through theory.

AboutAbout the lab
Explaining the diverse phenomena of materials through theory.
The Morinari Condensed Matter Theory Lab studies the diverse phenomena shown by materials using theoretical methods.
Using field theory and numerical calculations, the lab studies high-temperature superconductivity, Dirac electrons in solids, and black hole analogues in quantum fluids.
Undergraduates are assigned to the Materials Science Division to carry out their graduation research (in the graduate school, this is the Materials Science Division of the Department of Human and Environmental Studies, Graduate School of Human and Environmental Studies).
Key terms
- Strongly correlated electron system
- A material in which electrons repel each other strongly, so it shows properties that cannot be explained by simple theories
- Dirac electron
- An electron in a solid that behaves relativistically, like a particle moving near the speed of light. Dirac electrons appear in materials such as graphene
- Skyrmion
- A structure in which the directions of electron spins are twisted like a vortex, behaving like a particle
NewsLab news
View More ↗ResearchResearch themes
The main research themes are elucidating the mechanism of high-temperature superconductivity, transport phenomena caused by Dirac electrons in solids, and strongly correlated electron systems.
*Illustrative imageMechanism of high-temperature superconductivity in cuprates
To address the difficult problem in which the wave and particle natures of electrons are intertwined, the lab has proposed the "skyrmion theory," in which doped holes form skyrmions. It has also shown the relationship between the symmetry breaking observed in magnetic torque experiments and antiferromagnetic correlations.
*Illustrative imageDirac electrons in solids
In systems such as graphene, where electrons in a solid behave as relativistic Dirac electrons, the lab studies new phenomena, including magnetotransport phenomena involving these electrons.
*Illustrative imageA new computational method for quantum spin systems
The lab tackles quantum spin systems using the equation of motion of Green's functions. This method can be used even when correlations between spins are short-range and gives accurate results at high temperatures. The lab has also used it to obtain the transition temperature of three-dimensional antiferromagnets.
MembersFaculty
The members of the Morinari Condensed Matter Theory Lab are faculty and students in the doctoral and master's programs.As of 2026
- ProfessorTakao Morinari
VoicesStudent voices
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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: “Tile levitates by Meissner effect” Garrett Pennell / CC BY-SA 3.0 (cropped)
- Mechanism of high-temperature superconductivity in cuprates: “YBCO superconductor” Maxim Bilovitskiy / CC BY-SA 4.0 (cropped)
- Dirac electrons in solids: “Graphene Lattice” Ququ / CC BY-SA 3.0 (cropped)
- A new computational method for quantum spin systems: “Ferrimagnetic ordering” Michael Schmid / CC BY-SA 3.0 (cropped)
- Related lab (田部研究室): “Glow In The Dark D20 Dice” Dark Elf Dice / CC BY-SA 4.0 (cropped)
- Related lab (力学系理論
(木坂 正史) ): “Exp-esc” Arnaud Cheritat / CC0 (cropped) - Related lab (計算理論
(THIES Holger) ): “Coq plus comm screenshot” Hugo Herbelin / CC BY-SA 3.0 (cropped) - Related lab (数理論理学
(DEBRECHT Matthew) ): “Cantor set radial phoenix” Cmglee / CC BY-SA 4.0 (cropped)
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