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Nakagawa Lab
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A lab that applies laser-cooled atoms to quantum technologies.
AboutAbout the lab
Applying laser-cooled atoms to quantum technologies
The Nakagawa Lab studies laser cooling and trapping techniques, which use laser light to control the motion of atoms, and the application of the resulting cold atoms to quantum technologies.
Quantum technologies seek to overcome the limits of conventional technologies by exploiting the distinctive properties of quantum mechanics; examples include quantum cryptography, quantum computing, and quantum sensors.
Laser-cooled atoms at temperatures below 100 μK show pronounced quantum-mechanical properties, so the lab studies quantum simulators and quantum inertial sensors that use them.
Key terms
- Laser cooling
- A technique that uses laser light to control the motion of atoms. It is studied together with trapping techniques
- Atom interferometer
- A device that uses ultracold atoms as matter waves to realize, with atoms, a mechanism similar to an optical interferometer
- Quantum simulator
- A quantum computer that uses entangled states to create an artificially controllable quantum many-body system and investigate its properties
NewsLab news
A master's student received the Outstanding Presentation Award at the Laser Center presentation meeting
A master's student received the Outstanding Presentation Award at the Master's Thesis Presentation
A fourth-year undergraduate student received the Outstanding Presentation Award at the Graduation Research Presentation
A master's student received the Outstanding Presentation Award at the Master's Thesis Presentation
A fourth-year undergraduate student received the Outstanding Poster Award at the Laser Center presentation meeting
ResearchResearch themes
The Nakagawa Lab studies laser cooling and trapping techniques and the application of the resulting cold atoms to quantum technologies. Currently it pursues two projects: developing quantum inertial sensors and developing quantum simulators using Rydberg atoms.
*Illustrative imageQuantum Inertial Sensors Using Cold Atoms
When ultracold atoms are used as matter waves, an interferometer similar to those used for light can be realized with atoms, called an atom interferometer. It can be applied to precision measurement of various physical quantities and is expected to be used in gyroscopes and gravimeters.
*Illustrative imageQuantum Simulators Using Rydberg Atoms
A quantum computer that uses entangled states to prepare an artificially controllable quantum many-body system and investigate its unusual physical properties is called a quantum simulator. It can precisely probe the behavior of quantum many-body systems and is expected to be applied to condensed matter physics.
MembersFaculty
The members of the Nakagawa Lab are faculty, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorKenichi Nakagawa
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: “Atom interferometer” European Space Agency / CC BY-SA 2.0 (cropped)
- Quantum Inertial Sensors Using Cold Atoms: “Cold Atom Lab Closeout” NASA/JPL-Caltech / Public domain (cropped)
- Quantum Simulators Using Rydberg Atoms: “Rydberg atom wave function” Hweimer / CC BY-SA 4.0 (cropped)
- Related lab (Endo Lab): “Atomic-nucleus-3435” Yasminperry2020 / CC BY-SA 4.0 (cropped)
- Related lab (Haruka Tanji Lab): “Optical cavities” No machine-readable author provided. Fffred~commonswiki assumed (based on copyright claims). / Public domain (cropped)
- Related lab (Miyamoto Lab): “Evanescent wave dynamic light scattering setup side view” Antje Larsen, Benoit Loppinet, Antonio Giuliani / CC BY-SA 4.0 (cropped)
- Related lab (Shimizu Lab): “Entangled Photon Generation for Liquid Crystal Qubits Image” Alexander202511 / CC BY-SA 4.0 (cropped)
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