R. Acharya, A. Potočnik, S. Brebels, A. Grill, J. Verjauw, T. Ivanov, D. Lozano, D. Wan, F. Mohiyaddin, J. V. Damme, A. Vadiraj, M. Mongillo, G. Gielen, F. Catthoor, J. Craninckx, I. Radu, B. Govoreanu
{"title":"Scalable 1.4 μW cryo-CMOS SP4T multiplexer operating at 10 mK for high-fidelity superconducting qubit measurements","authors":"R. Acharya, A. Potočnik, S. Brebels, A. Grill, J. Verjauw, T. Ivanov, D. Lozano, D. Wan, F. Mohiyaddin, J. V. Damme, A. Vadiraj, M. Mongillo, G. Gielen, F. Catthoor, J. Craninckx, I. Radu, B. Govoreanu","doi":"10.1109/vlsitechnologyandcir46769.2022.9830396","DOIUrl":null,"url":null,"abstract":"In this work, we report on the electrical performance of an ultra-low-power cryo-CMOS single-pole-4-throw (SP4T) RF multiplexer working at 10 mK base temperature stage of a dilution refrigerator. We use the multiplexer to benchmark a superconducting qubit for the very first time and obtain qubit coherence times of over 35 μs along with an average single-qubit gate fidelity of 99.93%, which exceeds the threshold required for quantum error-correction based on surface-code. This work demonstrates the operability of superconducting qubits with ultra-low-power cryo-CMOS devices at the base temperature, paving the way for advanced co-integration schemes.","PeriodicalId":332454,"journal":{"name":"2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/vlsitechnologyandcir46769.2022.9830396","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this work, we report on the electrical performance of an ultra-low-power cryo-CMOS single-pole-4-throw (SP4T) RF multiplexer working at 10 mK base temperature stage of a dilution refrigerator. We use the multiplexer to benchmark a superconducting qubit for the very first time and obtain qubit coherence times of over 35 μs along with an average single-qubit gate fidelity of 99.93%, which exceeds the threshold required for quantum error-correction based on surface-code. This work demonstrates the operability of superconducting qubits with ultra-low-power cryo-CMOS devices at the base temperature, paving the way for advanced co-integration schemes.