发表机构
Fermi National Accelerator Laboratory; Department of Physics & Astronomy, Northwestern University; Department of Physics, Illinois Institute of Technology（费米国家加速器实验室; 西北大学物理与天文学系; 伊利诺伊理工学院物理系）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文介绍QICK Box，一种模块化射频前端系统，支持多达16输出、8输入和8个20位直流偏置，通过单次读出测量在费米实验室QUIET平台上实现91.7%的读出保真度，适用于高保真量子控制与测量。
AI 中文摘要
QICK（量子仪器控制套件）于2022年首次推出，是一个用于量子信息科学的独立开源控制系统。自那时起，QICK已迁移到新的硬件平台，扩展了其在不同类型量子比特（超导、原子、离子阱和自旋缺陷）以及量子传感器和量子网络应用中的功能。QICK是一个高度优化的控制套件，其函数库可用于多种应用。特别是，软件和固件经过定制以最小化延迟并最大化控制性能和吞吐量。在本白皮书中，我们描述了QICK Box的硬件细节和性能。QICK Box具有多达16个输出、多达8个输入和8个20位直流偏置。模块化输出和输入子板提供了针对快速直流耦合信号或高达10 GHz射频信号优化的信号链选择。功率电平、步进衰减和带通滤波由软件控制。我们通过在费米实验室的量子地下仪器实验测试平台（QUIET）上对六透mon器件进行单次读出测量来展示系统性能，实现了（91.7±0.4）%的读出保真度，该保真度受读出期间T1衰减的限制。在没有量子放大器的情况下，单次读出信噪比（SNR）为4.4±0.1，证实了QICK Box适用于高保真量子控制和测量应用。固件和软件的进展将在另一篇论文中描述。
英文摘要
The QICK (Quantum Instrumentation Control Kit), first introduced in 2022, is a standalone open source control system for quantum information science. Since then, QICK has been migrated to new hardware platforms, expanded its functionality for applications with different types of qubits (superconducting, atomic, ion-trapped, and spin defects), as well as quantum sensors, and quantum networks. QICK is a highly optimized control kit, with a library of functions that can be used for more than one application. In particular, the software and firmware are customized to minimize latency and maximize control performance and throughput. In this white paper, we describe hardware details and performance of the QICK Box. The QICK Box features up to 16 outputs, up to 8 inputs, and 8 20-bit DC biases. Modular output and input daughtercards give the choice of signal chains optimized for fast DC-coupled signals or RF signals up to 10 GHz. Power levels, step attenuation, and bandpass filtering are controlled by software. We demonstrate the system's performance through single-shot readout measurements of a six-transmon device at the Quantum Underground Instrumentation Experimental Testbed (QUIET) at Fermilab, achieving (91.7 +/- 0.4)% readout fidelity limited by T1 decay during the readout. The single shot readout signal-to-noise ratio (SNR) is 4.4 +/- 0.1 without a quantum amplifier, confirming that the QICK Box is suitable for high-fidelity quantum control and measurement applications. Advances in firmware and software will be described in a separate paper.
