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Harmonic balance simulation of the influence of component uniformity and reliability on the performance of a Josephson traveling wave parametric amplifier |
| Yuzhen Zheng(郑煜臻)1,2, Kanglin Xiong(熊康林)2,†, Jiagui Feng(冯加贵)2,‡, and Hui Yang(杨辉)1,2,§ |
1 School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China;
2 Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China |
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Abstract A Josephson traveling wave parametric amplifier (JTWPA), which is a quantum-limited amplifier with high gain and large bandwidth, is the core device of large-scale measurement and control systems for quantum computing. A typical JTWPA consists of thousands of Josephson junctions connected in series to form a transmission line and hundreds of shunt LC resonators periodically loaded along the line for phase matching. Because the variation of these capacitors and inductors can be detrimental to their high-frequency characteristics, the fabrication of a JTWPA typically necessitates precise processing equipment. To guide the fabrication process and further improve the design for manufacturability, it is necessary to understand how each electronic component affects the amplifier. In this paper, we use the harmonic balance method to conduct a comprehensive study on the impact of nonuniformity and fabrication yield of the electronic components on the performance of a JTWPA. The results provide insightful and scientific guidance for device design and fabrication processes.
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Received: 12 July 2023
Revised: 19 October 2023
Accepted manuscript online: 24 October 2023
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PACS:
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04.30.Nk
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(Wave propagation and interactions)
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03.65.-w
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(Quantum mechanics)
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03.67.-a
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(Quantum information)
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| Fund: KLX acknowledges support from the Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2019319). JGF acknowledges support from the Start-up Foundation of Suzhou Institute of Nano-Tech and Nano-Bionics, CAS, Suzhou (Grant No. Y9AAD110). |
Corresponding Authors:
Kanglin Xiong, Jiagui Feng, Hui Yang
E-mail: klxiong2008@sinano.ac.cn;jgfeng2017@sinano.ac.cn;hyang2006@sinano.ac.cn
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Cite this article:
Yuzhen Zheng(郑煜臻), Kanglin Xiong(熊康林), Jiagui Feng(冯加贵), and Hui Yang(杨辉) Harmonic balance simulation of the influence of component uniformity and reliability on the performance of a Josephson traveling wave parametric amplifier 2024 Chin. Phys. B 33 040401
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