News

Research Exchange at the Japan–Germany ASPIRE ECR Workshop

Presentation at PECS-XIV and Visit to Quantum Research Institutions in the UK

New Album: Showing Our Aspire Exchange Student Around Asakusa

New Album: Tokyo Tower Adventure

Aspire Exchange Visit by a PhD Student from Saarland University

Quantum Internet Seminar Celebrating 100 Years of Quantum Mechanics and Kosaka Lab’s Research Highlights

QIE 2025 in Okinawa — Co-organized by the Quantum Information Research Center (QIC)

New Publication: Modular interface for efficient optical readout of diamond quantum memory at cryogenic temperatures via single-mode optical fibers

Published in Optics Letters: Robust transfer of a quantum state from an absorbed photon into a diamond spin

New Research Article: Assistant Professor Yuhei Sekiguchi’s Research Published in JSAP Review

Quantum Innovation 2025 & Moonshot Goal 6 International Symposium 2025

Lab Retreat at Lake Kawaguchiko

Visit by KEK (July 24)

Aspire Kickoff Meeting Held in Ulm, Germany

New Paper Published: Quantum Orbital‑State Control of a Neutral Nitrogen‑Vacancy Center at Millikelvin Temperatures

Prof. Hideo Kosaka to Speak at the Moonshot Goal 6 International Symposium 2025 (August 2)

YNU Quantum Information Research Center Featured in Asian Research News

QIC Research Video Featured at the APS Global Physics Summit 2025

Japan-Germany Joint Research Project “DIAMONDQTECH” Selected for JST’s ASPIRE Program in Quantum Technologies

New Publication: Robust transfer of a quantum state from an absorbed photon into a diamond spin

Album Update: Cherry Blossom Picnic Photos (April 8) Added!

New Publication: Spatially Resolved Optical Responses of a High-Kinetic-Inductance Microwave Resonator

Moonshot Goal 6 Public Symposium: Pioneering Discussions on the Future of Quantum Technology

Album Update: Kurihama Flower Park Trip Photos (March 24) Added!

Assistant Professor Kamimaki Delivers Invited Lecture at Tohoku University GP-Spin 10th Anniversary Symposium

Students Showcase Their Research at the Undergraduate and Master’s Thesis Presentation

Yokohama National University and Ulm University Sign MOU to Promote Cooperation in Quantum Technology

Presentations at the JPS 79th Annual Meeting

The 85th JSAP Autumn Meeting: presentations by Raustin Reyes (D3) & Moyuki Yamamoto (D2)

Album Update: Izu Kogen Seminar – A Scenic Learning Adventure

Swiss-Japanese Quantum Symposium 2024 Report

Kyosuke Goto (B4) and Daisuke Ito (M1) received academic excellence awards

Professor Hideo Kosaka to deliver invited lecture at Swiss-Japanese Quantum Symposium 2024 on June 7th

Field trip photos added to album

The research result of Hodaka Kurokawa et al. has been published in Nature Communications

Feature article on the Moonshot Goal 6 project “Development of Quantum Interfaces for Construction of Quantum Computational Networks”, in which Professor Hideo Kosaka serves as project manager, was published in Nature.

Paper release: the research result of Moyuki Yamamoto（D1） et al. has been published in Journal of Applied Physics

Paper release: the research result of Akira Kamimaki et al. has been published in npj Quantum Information

Professor Hideo Kosaka gave an invited talk at Okinawa School in Physics 2023 on September 26.

Professor Hideo Kosaka will give an invited talk at Moonshot Goal 6: International Symposium 2023 on July 19.

Professor Hideo Kosaka gave an invited talk at QR.X-Statusseminar II on June 16.

Article: “Professor Hideo Kosaka of Yokohama National University speaks about trying to realize the quantum internet”

Shintaro Nakazato (M1) and Ami Matsuki (M1) received the Best Presentation Award and the Excellent Presentation Award, respectively, at the 18th Nanotechnology Exchange Symposium on March 7, 2023.

Recruiting: Specially Appointed Assistant Professor

Paper release: the research result of Hodaka Kurokawa et al. has been published in Physical Review Applied

Professor Hideo Kosaka gave an invited talk at Quantum Innovation 2022

New website design

Physics World published an article about our research on optically addressable universal holonomic quantum gates

The paper “Optically addressable universal holonomic quantum gates on diamond spins” was featured in an article of News & Views on Nature Photonics.

Press release: New method of controlling qubits could advance quantum computers

Raustin Reyes (D1) and Moyuki Yamamoto (M2) have been awarded a scholarship by the Graduate School of Engineering Science.

Physics World published an article regarding our paper about quantum error correction.

The paper with the research results of Raustin Reyes and the YNU research team have been published as “Complete Bell state measurement of diamond nuclear spins under a complete spatial symmetry at zero magnetic field” in Applied Physics Letters.

The Nikkei featured our latest research progress on the construction of quantum computers in their newspaper.

[Press release] Fault-tolerant quantum computer memory in diamond

The Quantum Information Research Center, whose Center Director is Professor Hideo Kosaka, is the first academic institution to join the Quantum STrategic industry Alliance for Revolution(Q-STAR).

The 69th JSAP Spring Meeting

Moonshot Public Symposium 2022 for Goal 6

Press release: the paper “Geometric entanglement of a photon and spin qubits in diamond” was published in Communications Physics.

Akira Kamimaki was hired as Specially Appointed Assistant Professor of Institute of Advanced Sciences.

The 82nd JSAP Autumn Meeting 2021 No.T6 “Recent progress in global quantum cryptography communication”

”Development of Quantum Interfaces for Building Quantum Computer Networks” July 1, 2021 US-Japan Quantum Cooperation Workshop

June 1, 2021 “Repeaters are the biggest challenge for quantum internet, but diamonds provide a solution.” (NIKKEI xTECH)

Shinichiro Fujii was hired as Specially Appointed Associate Professor of Institute of Advanced Sciences.

May 31, 2021 Establishment of a partnership between the Quantum Internet Task Force (QITF) and government, industry and academia.

Hodaka Kurokawa was hired as Specially Appointed Assistant Professor of Institute of Advanced Sciences.

Microoptics Group, The Japan Society of Applied Physics.

The website of Moonshot R&D Goal 6 “Quantum interface development for quantum computer network construction'” has opend.

March 11, 2021 The kick-off symposium for Moonshot goal 6 was held.

The Institute of Electronics, Information and Communication Engineers , Communication Method (CS) Research “New developments in Quantum Information Processing” (Online)

「Quantum communication and quantum computation toward quantum computer network」

Professor Hideo Kosaka has been appointed as representative of the Quantum information engineering of The Japan Society of Applied Physics.

Katsunori Kawano was appointed as Strategic Research Planning Manager of the IAS.

Ceremony for the establishment of The Quantum Information Research Center at IAS. Ceremony video (Japanese only)

Professor Hideo Kosaka appointed as Center Director of the Quantum Information Research Center.

Professor Hideo Kosaka has joined the Quantum Key Distrubution Technology Advancement Committee of the Quantum ICT Forum.

Professor Hideo Kosaka has been appointed as the project manager for Moonshot’s Goal 6 following R&D Project

2019 Research Highlights from the past year -What were some of the top research that made an impact?-

The paper honorary achieved 6th most-visited news release on EurekAlert!

Topical Conference on Quantum Communication and Security 2019(TCQCS 2019)

Dynamical Decoupling of a Geometric Qubit

Japan-Netherlands Quantum Conference

2019 International Conference on Solid State Devices and Materials(SSDM2019)

Quantum teleportation-based state transfer of photon polarization into a carbon spin in diamond

The 1st International Forum on Quantum Sensing (IFQS2019)

Yuhei Sekiguchi(PhD2) went to Netherlands to start joint research with Professor Tim Taminiau in Delft University of Technology.

We made a contract of joint research with Sumitomo Electric Industries, Ltd.