Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

International Conference on Solid State Devices and Materials (SSDM)

16x8 Quantum Dot Array Operation at Cryogenic Temperatures

Noriyuki Lee, Ryuta Tsuchiya, Yusuke Kanno, Toshiyuki Mine, Y. Sasago, Go Shinkai, Raisei Mizokuchi, Jun Yoneda, Tetsuo Kodera, Chihiro Yoshimura, Shinichi Saito, Digh Hisamoto, Hiroyuki Mizuno

Published Sep 7, 2021• 0 citations
Publisher
DOI
10.7567/ssdm.2021.a-1-02

Related papers

16 x 8 quantum dot array operation at cryogenic temperatures

来成 溝口, Raisei Mizokuchi, Jun Yoneda +1 more

•Feb 1, 2022•0 citations

Tuning of Two-Stage HEMT Cryogenic Amplifier to Reduce Electron Temperature in a Nearby Quantum Dot

T. J. Knapp, J. P. Dodson, Brandur Thorgrimsson +4 more

Bulletin of the American Physical Society•Mar 7, 2018•1 citation

Coherent multiqubit operations in a six quantum dot linear array

Stephan G. J. Philips, Mateusz Tomasz Mądzik, Maximilian Russ +5 more

Bulletin of the American Physical Society•Mar 18, 2021•0 citations

Persistence of entangled states and high-fidelity quantum gate operations in Si/SiGe spin qubits at high temperature

Sergey V. Amitonov, A. Aprá, M. Asker +20 more

We characterize single- and two-qubit operations in a SiGe quantum dot array, from the perspective of its quantum information processing capabilities. The analysis includes rigorous randomized benchmarking of single- and two-qubit gates, state preparation and measurement characterization, and Bell's state tomography, which are all basic functionalities required for universal quantum computation. To assess compatibility with integrated cryogenic electronics, we evaluate qubit performance at 350, 500, and 750 mK, with high-fidelity single and two qubit operations. The highest temperature, 750 mK, falls within the realistic thermal budget for practical integrated cryogenic electronics and represents the highest operating temperature reported for this qubit platform.

arXiv:2412.01920•Applied Physics Letters•Aug 17, 2026•0 citations

Characterization of a cryogenic amplifier for higher bandwidth measurement of silicon quantum dots

Shimpei Nishiyama, Mizuki Kobayashi, Raisei Mizokuchi +1 more

The Japan Society of Applied Physics•Jan 25, 2019•0 citations

Hybrid System of an Optical Nanofibre and a Single Quantum Dot Operated at Cryogenic Temperatures

K. Muhammed Shafi, Wei Luo, Ramachandrarao Yalla +4 more

Recent progress in quantum nanophotonics brings novel ways for manipulating single photons in various nano-waveguides. Among them, one promising approach is to use optical nanofibres (ONFs), tapered optical fibres with sub-wavelength diameter waists. Here, we develop a hybrid system of an ONF and a single quantum dot (QD) operated at cryogenic temperatures. We deposit a single colloidal CdSe QD on an ONF waist and observe emitted photons through the fibre guided modes. We systematically investigate emission characteristics for both the neutral exciton and charged exciton (trion) for one specific QD. We quantitatively show that the trion at cryogenic temperatures acts as an excellent quantum emitter for the ONF and QD hybrid system. The present ONF/QD hybrid system at cryogenic temperatures paves the way for quantum information technologies for manipulating single photons in fibre networks.

Scientific Reports•Sep 4, 2018•20 citations
We characterize single- and two-qubit operations in a SiGe quantum dot array, from the perspective of its quantum information processing capabilities. The analysis includes rigorous randomized benchmarking of single- and two-qubit gates, state preparation and measurement characterization, and Bell's state tomography, which are all basic functionalities required for universal quantum computation. To assess compatibility with integrated cryogenic electronics, we evaluate qubit performance at 350, 500, and 750 mK, with high-fidelity single and two qubit operations. The highest temperature, 750 mK, falls within the realistic thermal budget for practical integrated cryogenic electronics and represents the highest operating temperature reported for this qubit platform.
Recent progress in quantum nanophotonics brings novel ways for manipulating single photons in various nano-waveguides. Among them, one promising approach is to use optical nanofibres (ONFs), tapered optical fibres with sub-wavelength diameter waists. Here, we develop a hybrid system of an ONF and a single quantum dot (QD) operated at cryogenic temperatures. We deposit a single colloidal CdSe QD on an ONF waist and observe emitted photons through the fibre guided modes. We systematically investigate emission characteristics for both the neutral exciton and charged exciton (trion) for one specific QD. We quantitatively show that the trion at cryogenic temperatures acts as an excellent quantum emitter for the ONF and QD hybrid system. The present ONF/QD hybrid system at cryogenic temperatures paves the way for quantum information technologies for manipulating single photons in fibre networks.