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Kyoto University Quantum Optics Lab
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The lab manipulates laser-cooled atoms at the quantum level.
AboutAbout the lab
Controlling atoms and light at the quantum level
The Quantum Optics Lab uses cutting-edge optical and quantum control techniques to control atoms and light down to the quantum level, creating and studying new quantum states.
It uses atoms such as ytterbium (Yb), cooled to extremely low temperatures with lasers.
Its research rests on three pillars: quantum simulation, the search for new physics through precision measurement, and quantum computing with cold atoms.
The lab centers on experiments, while its members also study and conduct theoretical research to support the experiments.
Key terms
- Optical lattice
- A periodic pattern of dips, like an egg carton, created by overlapping laser beams. Atoms can be confined and arranged in it one by one.
- Quantum simulation
- Reproducing and studying the behavior of one quantum system using another quantum system that is easier to control.
- Standard Model
- The basic theory of current particle physics, which explains elementary particles and their interactions.
NewsLab news
A student won the Outstanding Poster Award at Summer School 2026
A student won the Young Researcher Poster Award at the FY2026 MS6 Summer Camp
A student won the Student Excellent Presentation Award (Division 1) at the Spring Meeting 2026 of the Physical Society of Japan
Faculty members of the lab won the Technology Leap Invention Award from the Kyoto University Headquarters for Growth Strategy
ResearchResearch themes
Using cutting-edge optical and quantum control technologies, the lab controls atoms and light down to the ultimate quantum level, generating and studying new quantum states of light and matter. It works on quantum simulation, precision measurement, and quantum computers.
*Illustrative imageQuantum Simulation with Atoms in Optical Lattices
A gas of ultracold Yb atoms in an optical lattice closely follows the Hubbard model, which describes strongly correlated electron systems in solids. The lab uses this system to perform quantum simulations of strongly correlated quantum many-body systems.
*Illustrative imageSearching for New Physics through Precision Measurement
The lab precisely measures the quantum states of ultracold Yb atoms to search for physics beyond the Standard Model. This low-energy approach using quantum systems is complementary to high-energy accelerator experiments.
*Illustrative imageQuantum Computing with Cold Neutral Atoms
The lab aims to build a quantum computer by trapping cold neutral atoms, which serve as qubits, one by one using optical tweezer arrays, then arranging and manipulating them.
MembersFaculty
The members of the Quantum Optics Lab consist of faculty, project researchers, doctoral and master's students, and academic assistants and project staff.As of 2026
- ProfessorYoshiro Takahashi
- Associate ProfessorYosuke Takasu
- Associate ProfessorKoki Ono
- Program-Specific Associate ProfessorKosuke Shibata
- Affiliated Associate ProfessorTetsushi Takano
- Assistant ProfessorShintaro Taie
- Program-Specific Assistant ProfessorASTERIA Luca
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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: “Experimental Atomic Clock; ytterbium atoms ( )” National Institute of Standards and Technology / Public domain (cropped)
- Quantum Simulation with Atoms in Optical Lattices: “Lattice superfluid” Sakurai2 / Public domain (cropped)
- Searching for New Physics through Precision Measurement: “Optical atomic clock ( )” National Institute of Standards and Technology / Public domain (cropped)
- Quantum Computing with Cold Neutral Atoms: “Cloud of ultracold atoms levitated in a magneto-optical trap” Balping / CC BY-SA 4.0 (cropped)
- Related lab (Optical Properties of Matter Lab): “Femtosecond Pulse Laser at Cornell University” paul_houle / CC BY-SA 2.0 (cropped)
- Related lab (Quantum Condensed Matter Lab): “Spin Polarized Scanning Tunneling Microscope ANL” Argonne National Laboratory's Flickr page / CC BY-SA 2.0 (cropped)
- Related lab (Condensed Matter Theory Lab): “Ytterbium Optical Lattice Clock” KRISS, the Korean Research Institute of Standards and Science / CC BY-SA 3.0 (cropped)
- Related lab (Quantum Chemistry Lab): “Amniote rhodopsin 3D structures” Constanze Bickelmann / CC BY-SA 3.0 (cropped)
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