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Condensed Matter Theory Lab (Sato)
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The lab theoretically creates new forms of matter using light and spin.
AboutAbout the lab
Crossing boundaries to open up the physics of quantum many-body systems.
The Sato Lab builds on condensed matter theory and statistical physics to study quantum many-body systems, optical properties of matter, and nonequilibrium phenomena across these areas.
The lab explores, from a theoretical standpoint, how to understand and create new properties of matter.
Its research is organized around keywords such as spintronics, magneto-optics, and Floquet engineering.
While learning from the long history of physics, the lab aims to create new phenomena and research fields through ideas not bound by existing frameworks.
Key terms
- Spintronics
- A research field that uses the electron's property called "spin," something like rotation, to control the flow of electricity and heat
- Nonequilibrium quantum systems
- Collections of quantum particles that are driven by strong light or time-varying external forces and move away from a settled, equilibrium state
- Multiferroics
- Materials that have both magnetic and electrical properties at the same time, with each affecting the other
NewsLab news
A review of Floquet theory for open quantum systems and classical systems was published in an English-language journal of the Physical Society of Japan
A paper on controlling optical rectification in graphene with two-color lasers was published in Physical Review B
A paper on terahertz high-harmonic generation in the Shastry-Sutherland magnet was published in Physical Review B
A paper on the inverse Faraday effect in Rashba electron systems was published in Physical Review B
A paper on high-harmonic generation in graphene carrying an electric current was published in Physical Review B
ResearchResearch themes
Using the methods of theoretical physics, the lab explores, predicts, and explains the universal and characteristic phenomena shown by many-body systems, in which a vast number of elements come together. Drawing on its knowledge of magnetism, it extends its research across condensed matter theory, statistical physics, and field theory.
*Illustrative imageUltrafast Spintronics and Magneto-Optics
The lab theoretically investigates ways to control the spins and magnetic defects of multiferroics and magnetic materials without contact and at ultrafast speeds, using terahertz circularly polarized lasers and optical vortices.
*Illustrative imageNonequilibrium Quantum Systems and Novel Quantum States
By driving quantum many-body systems with intense lasers or time-dependent external fields, the lab creates and controls topological quantum states and nonequilibrium phases that cannot be realized in equilibrium.
*Illustrative imageSpin Currents and Transport Driven by Heat and Light
Starting from microscopic models, the lab clarifies spin currents generated by temperature gradients or light irradiation, the thermal Hall effect, and thermal transport in quantum spin liquids.
*Illustrative imageMethods for Detecting Exotic Quantum Phases
The lab proposes ways to detect spin liquids, multipolar order, and chirality order. It is also building theories of how low-dimensional electron systems respond to electromagnetic fields.
MembersFaculty
The members of the Sato Lab are faculty and students at the doctoral, master's, and undergraduate levels.As of 2026
- ProfessorMasahiro Sato
- Project Assistant ProfessorMinoru Kanega
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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: “HELEN target area” Colin N. Danson et al. / CC BY 4.0 (cropped)
- Ultrafast Spintronics and Magneto-Optics: “Dye laser alignment intra-cavity beam @ 589nm” Zaereth / CC BY-SA 4.0 (cropped)
- Nonequilibrium Quantum Systems and Novel Quantum States: “Pulsed Laser Deposition in Action” Adam Andersen Læssøe / CC BY-SA 4.0 (cropped)
- Spin Currents and Transport Driven by Heat and Light: “Thermal Conductivity Measurement, Modified Transient Plane Source Technique” JimRocket / CC BY-SA 3.0 (cropped)
- Methods for Detecting Exotic Quantum Phases: “N2 Wannier” Daniel Åberg / CC BY 3.0 (cropped)
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（星野研究室） ): “Stickstoff gekühlter Supraleiter schwebt über Dauermagneten” Henry Mühlpfordt / CC BY-SA 3.0 (cropped) - Related lab (電子物性物理学): “CuO2-plane in high Tc superconductor” Pieter Kuiper / Public domain (cropped)
- Related lab (非線形・ソフトマター物理学): “Ripples on Mesquite Flat Sand Dunes” National Park Service / Public domain (cropped)
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