A Cryo-CMOS Color-Center Quantum Controller with Diamond Waveguide Micro-Chiplet Integration

📋 论文概要

该论文提出了一种用于色心量子处理器的可扩展低温CMOS控制器，通过金刚石波导微芯粒与CMOS的3D集成实现了可扩展光子读出。采用串行量子比特驱动器阵列，利用栅极电感器和脉冲宽度调制器为每个量子比特生成可编程的2.87GHz磁场，实现低功耗和强磁场约束，单芯片支持144个量子比特。

💡 主要创新点

• 提出了金刚石波导微芯粒与CMOS的3D集成方案，利用pick-and-place和3D打印棱镜实现可扩展的光子读出。
• 设计了串行量子比特驱动器阵列，采用栅极电感器和脉冲宽度调制器生成可编程2.87GHz磁场，实现低功耗（每量子比特204µW）和强约束。

🏷 关键词

📄 原文摘要

Abstract We present a scalable cryo-CMOS controller for color-center-based quantum processors. A diamond waveguide micro-chiplet with NVs is pick-and-placed on CMOS with a 3D-printed prism for scalable photonic readout. A serial qubit driver array using grid inductors and pulse-width modulators generates a programmable 2.87GHz magnetic field for each qubit with low power and strong confinement. Up to 144 qubits can be operated on a single chip, with 204µW power consumption per qubit under active control. Color centers in diamond are solid-state defects that confine charge carriers in optically accessible quantum states. They have shown great potentials for multi-modal quantum sensing, long-distance entanglement [1], and hybrid integration with CMOS [2,3]. Due to the long coherence time of nitrogen vacancy (NV) centers in diamond and high operating temperature (4K), the feasibility of using CMOS circuits to control the NV electron spin and

👥 作者与机构

Jinchen Wang, Yuyang Han, Isaac B. Harris, Eunseok Lee, Yong Hu, Di Liu, Dirk Englund, Ruonan Han

Massachusetts Institute of Technology, Cambridge, MA