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Quantum Intelligent Devices Lab
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The lab applies noise and the wisdom of slime molds to electronic devices.
AboutAbout the lab
Bringing nature's clever mechanisms into devices.
The Quantum Intelligent Devices Lab studies materials and devices with new functions that apply new physical phenomena and clever mechanisms found in nature.
It works on detecting myoelectric signals using "stochastic resonance," which living things exploit to make use of noise, and on low-power artificial intelligence that uses the movement of slime molds.
The lab also advances research on microfabrication of semiconductors using light and electrochemistry, and on materials that convert light into electricity.
The lab consists of the Functional Electronic Devices Group and the Semiconductor Electrochemical Processes Group.
Key terms
- Stochastic resonance
- A phenomenon in which adding noise actually makes it easier to detect a weak signal
- Slime mold
- A single-celled organism with no brain that can nonetheless solve advanced problems such as mazes
- Gallium nitride (GaN)
- A semiconductor known as a material for blue LEDs. It is hard and difficult to process
NewsLab news
A paper was published in Int. J. Unconv. Comput.
A paper was published in Jpn. J. Appl. Phys.
A master's student received an Encouragement Award at the 1st Future 60 Years Award Challenge Contest
Associate Professor Yatabe joined the Functional Electronic Devices Group
An article explaining the electronic amoeba was published in the IEICE journal
ResearchResearch themes
The lab studies how to build the remarkable phenomena and functions of nature and living things into electronic devices and circuits and apply them. In addition to functions that coexist and cooperate with fluctuations and noise, it works on low-damage processing of semiconductors using photoelectrochemical reactions.
*Illustrative imageDevices that turn noise into an ally
The lab has succeeded in producing stochastic resonance, in which noise raises sensitivity to weak signals, in semiconductor transistors. Using stochastic resonance, it developed a technology to stably detect electrical signals from muscles. As an application to man-machine interfaces, it also works on myoelectric prosthetic hands.
*Illustrative imageElectronic computers modeled on slime molds
The lab is building the "electronic amoeba," a new type of computer that builds the ability of slime molds to search for food efficiently into electronic circuits. It has succeeded in solving very hard combinatorial problems such as the traveling salesman problem.
*Illustrative imageProcessing semiconductors with light and chemistry
Using photoelectrochemical (PEC) reactions, in which ultraviolet light enhances the reactivity of chemicals, the lab developed a method to process gallium nitride (GaN), a hard semiconductor, by dissolving it little by little without damaging it. It also works on photoelectric conversion materials that use light absorption by nanostructures.
*Illustrative imageRobots driven by the electronic amoeba
The lab is building autonomous walking robots that, through real-time optimization by the electronic amoeba, find and carry out behavior suited to their environment on their own.
MembersFaculty
The members of the Quantum Intelligent Devices Lab consist of faculty, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorSeiya Kasai
- Associate ProfessorTaketomo Sato
- Associate ProfessorZenji Yatabe
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: “Blob (Physarum polycephalum)” Le Bernemi / CC BY-SA 4.0 (cropped)
- Devices that turn noise into an ally: “Usfws-guyandotte-river-crayfish-large” USFWS / Public domain (cropped)
- Electronic computers modeled on slime molds: “Physarum polycephalum on a Petri dish.” Tim Tim (VD fr) / CC BY-SA 4.0 (cropped)
- Processing semiconductors with light and chemistry: “Plessey Semiconductors Ltd GaN-on-Silicon microLED arrays on wafer” Palee93 / CC BY-SA 4.0 (cropped)
- Robots driven by the electronic amoeba: “Hexapod walking robot” Mdenton (talk) (Uploads) / Public domain (cropped)
- Related lab (ナノ電子デバイス学研究室): “CMOS magnetische Blasendomänen” Matesy GmbH / CC BY-SA 3.0 (cropped)
- Related lab (磁気共鳴工学研究室): “MRI Scanner Mark One” AndyGaskell / CC BY-SA 4.0 (cropped)
- Related lab (ナノ物性工学研究室): “Stretchable Electronics” Steve Jurvetson from Menlo Park, USA / CC BY 2.0 (cropped)
- Related lab (集積ナノシステム研究室): “Нейрон коры с множеством дендритных шипиков” Sergb95 / CC BY-SA 4.0 (cropped)
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