Heterogeneous integration of spin-photon interfaces with a CMOS platform

• 成果类型: Article
• 署名作者: Li, Linsen; De Santis, Lorenzo; Harris, Isaac B. W.; Chen, Kevin C.; Gao, Yihuai; Christen, Ian; Choi, Hyeongrak; Trusheim, Matthew; Song, Yixuan; Errando-Herranz, Carlos; Du, Jiahui; Hu, Yong; Clark, Genevieve; Ibrahim, Mohamed I.; Gilbert, Gerald; Han, Ruonan; Englund, Dirk
• 署名单位: Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); Delft University of Technology; United States Department of Defense; US Army Research, Development & Engineering Command (RDECOM); US Army Research Laboratory (ARL); United States Army; University of Munster; MITRE Corporation; Cornell University; MITRE Corporation
• 刊物名称: Nature
• ISSN/ISSBN: 0028-5160
• DOI: 10.1038/s41586-024-07371-7
• 发表日期: 2024-06-13
• 关键词: y-chromosome palindromes; genetic-variation; dna methylation; copy number; rna genes; EVOLUTION; sequence; diversity; heterochromatin; degeneration

摘要

Colour centres in diamond have emerged as a leading solid-state platform for advancing quantum technologies, satisfying the DiVincenzo criteria1 and recently achieving quantum advantage in secret key distribution2. Blueprint studies3-5 indicate that general-purpose quantum computing using local quantum communication networks will require millions of physical qubits to encode thousands of logical qubits, presenting an open scalability challenge. Here we introduce a modular quantum system-on-chip (QSoC) architecture that integrates thousands of individually addressable tin-vacancy spin qubits in two-dimensional arrays of quantum microchiplets into an application-specific integrated circuit designed for cryogenic control. We demonstrate crucial fabrication steps and architectural subcomponents, including QSoC transfer by means of a 'lock-and-release' method for large-scale heterogeneous integration, high-throughput spin-qubit calibration and spectral tuning, and efficient spin state preparation and measurement. This QSoC architecture supports full connectivity for quantum memory arrays by spectral tuning across spin-photon frequency channels. Design studies building on these measurements indicate further scaling potential by means of increased qubit density, larger QSoC active regions and optical networking across QSoC modules. A modular quantum system-on-chip architecture integrates thousands of individually addressable spin qubits in two-dimensional quantum microchiplet arrays into an integrated circuit designed for cryogenic control, supporting full connectivity for quantum memory arrays across spin-photon channels.