Uploaded March 2025 | Updated September 2026, 2 weeks ago
As part of the OIST Proof of Concept program, researchers from the Hybrid Quantum Device Team led by Dr. Yuimaru Kubo have been developing an ultra-low-noise amplifier based on the stimulated emission of impurity spins in gem crystals. By using this approach, Dr. Kubo's team is creating a new type of maser-based device that can amplify microwave signals at millikelvin temperatures and with a saturation power much larger than that of existing, state-of-the-art superconducting Josephson parametric amplifiers — without adding noise and even in a modest magnetic field.
Beyond applications in ultra-sensitive magnetic resonance spectroscopy, this new amplifier could transform the field of cryogenic microwave quantum technologies and lead to the creation of scalable quantum computing hardware systems.
Speaker: Dr. Yuimaru Kubo, Science and Technology Group; oist.jp/stg/yuimaru-kubo
More information in English: oist.jp/sites/default/files/2025-02/68.%20Kubo_Phase%20II.pdf
More information in Japanese: oist.jp/sites/default/files/2025-02/68.%20Kubo_Phase%20II%20ja.pdf
The OIST Proof of Concept (POC) Program is a competitive funding initiative designed to bridge the gap between laboratory discoveries and commercialization. Learn more about POC projects: oist.jp/innovation/technology-development
#Amplifier #Maser #Quantum #QuantumTechnologies #QuantumComputing #MicrowaveEngineering #ProofOfConcept
As part of the OIST Proof of Concept program, researchers from the Hybrid Quantum Device Team led by Dr. Yuimaru Kubo have been developing an ultra-low-noise amplifier based on the stimulated emission of impurity spins in gem crystals. By using this approach, Dr. Kubo's team is creating a new type of maser-based device that can amplify microwave signals at millikelvin temperatures and with a saturation power much larger than that of existing, state-of-the-art superconducting Josephson parametric amplifiers — without adding noise and even in a modest magnetic field.
Beyond applications in ultra-sensitive magnetic resonance spectroscopy, this new amplifier could transform the field of cryogenic microwave quantum technologies and lead to the creation of scalable quantum computing hardware systems.
Speaker: Dr. Yuimaru Kubo, Science and Technology Group; oist.jp/stg/yuimaru-kubo
More information in English: oist.jp/sites/default/files/2025-02/68.%20Kubo_Phase%20II.pdf
More information in Japanese: oist.jp/sites/default/files/2025-02/68.%20Kubo_Phase%20II%20ja.pdf
The OIST Proof of Concept (POC) Program is a competitive funding initiative designed to bridge the gap between laboratory discoveries and commercialization. Learn more about POC projects: oist.jp/innovation/technology-development
#Amplifier #Maser #Quantum #QuantumTechnologies #QuantumComputing #MicrowaveEngineering #ProofOfConcept
