Scalable Cryoelectronics for Superconducting Qubit Control and Readout
Scalable Cryoelectronics for Superconducting Qubit Control and Readout
复制标题
用于超导量子位控制和读出的可扩展低温电子学
DOI：
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复制
发表时间：
2022
影响因子：
7.4
通讯作者：
H. Heidari
中科院分区：
文献类型：
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作者：
Meraj Ahmad;Christos Giagkoulovits;S. Danilin;M. Weides;H. Heidari
量子计算承诺比经典计算机具有指数级更高的计算能力;尽管所有的构建模块都已可用，但某些限制仍然阻止了量子优势。构建实用量子计算机的根本挑战是将数千个高度相干的量子位与控制和读出电子器件集成在一起。对高相干量子比特的需求推动了量子纠错算法的努力，以创建容错量子系统。纠错在量子处理器中只有在大量的量子比特中才是有形的。因此，另一个挑战是减少量子经典接口和庞大的室温电子器件之间的物理互连（同轴电缆）的数量。为了连接数千个量子比特，可以通过将控制和读出电子设备靠近量子处理器来减少互连。低温互补金属氧化物半导体（CMOS）技术是实现这一目的的理想候选技术。由于稀释制冷机的冷却能力有限，低温下的集成控制和读出需要低功耗电路设计和频分复用（FDM）等技术。在此，提供了超导量子计算机中的每个构建块的概述，重点是可扩展性。此外，本文最后展望了可扩展超导控制和读出的当前挑战和未来方向。
Quantum computing promises an exponentially higher computational power than classical computers; although all the building blocks have become available, certain constraints still prevent quantum advantage. The fundamental challenge in building a practical quantum computer is integrating thousands of highly coherent qubits with the control and readout electronics. The need for a high‐coherence qubit drives the effort for quantum error correction algorithms to create fault‐tolerant quantum systems. Error correction becomes tangible in a quantum processor only in large numbers of qubits. Thus, the other challenge is reducing the number of physical interconnects (coaxial lines) between the quantum–classical interface and bulky room‐temperature electronics. To interface thousands of qubits, interconnects can be reduced by bringing the control and readout electronics near the quantum processor. Cryogenic complementary metal–oxide–semiconductor (CMOS) technology has been an ideal candidate for this purpose. Integrated control and readout at cryogenic temperatures require low power dissipation circuit designs and techniques such as frequency‐division multiplexing (FDM) due to the finite cooling power of a dilution refrigerator. Herein, an overview of each building block in a superconducting quantum computer is provided, focusing on scalability. Furthermore, this article is concluded with an outlook discussing current challenges and future directions for the scalable superconducting control and readout.
设计超导量子系统的微波到红外噪声光子通量
DOI：
10.48550/arxiv.2107.09331
发表时间：
2021
期刊：
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影响因子：
--
作者：
Danilin S
通讯作者：
Danilin S