{"id":818381,"date":"2026-03-11T07:19:26","date_gmt":"2026-03-11T07:19:26","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/818381\/"},"modified":"2026-03-11T07:19:26","modified_gmt":"2026-03-11T07:19:26","slug":"a-quantum-computer-controlled-by-superconducting-digital-electronics-at-millikelvin-temperature","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/818381\/","title":{"rendered":"A quantum computer controlled by superconducting digital electronics at millikelvin temperature"},"content":{"rendered":"
  • \n

    Arute, F. et al. Quantum supremacy using a programmable superconducting processor. Nature 574<\/b>, 505\u2013510 (2019).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Wu, Y. et al. Strong quantum computational advantage using a superconducting quantum processor. Phys. Rev. Lett. 127<\/b>, 180501 (2021).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Morvan, A. et al. Phase transitions in random circuit sampling. Nature 634<\/b>, 328\u2013333 (2024).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Fowler, A. G., Mariantoni, M., Martinis, J. M. & Cleland, A. N. Surface codes: towards practical large-scale quantum computation. Phys. Rev. A 86<\/b>, 032324 (2012).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Krinner, S. et al. Engineering cryogenic setups for 100-qubit scale superconducting circuit systems. EPJ Quantum Technol. https:\/\/doi.org\/10.1287\/ijoc.1090.0342<\/a> (2018).<\/p>\n<\/li>\n

  • \n

    Yoo, J. et al. 34.2 A 28-nm bulk-CMOS IC for full control of a superconducting quantum processor unit-cell. In Proc. 2023 IEEE International Solid- State Circuits Conference (ISSCC) 506\u2013508 (IEEE, 2023).<\/p>\n<\/li>\n

  • \n

    Chakraborty, S. et al. A cryo-CMOS low-power semi-autonomous transmon qubit state controller in 14-nm FinFET technology. IEEE J. Solid-State Circuits 57<\/b>, 3258\u20133273 (2022).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    McDermott, R. et al. Quantum-classical interface based on single flux quantum digital logic. Quantum Sci. Technol. 3<\/b>, 024004 (2018).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Polonsky, S. V. et al. New RSFQ circuits (Josephson junction digital devices). IEEE Trans. Appl. Supercond. 3<\/b>, 2566\u20132577 (1993).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Koch, J. et al. Charge-insensitive qubit design derived from the Cooper pair box. Phys. Rev. A 76<\/b>, 042319 (2007).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    McDermott, R. & Vavilov, M. G. Accurate qubit control with single flux quantum pulses. Phys. Rev. Appl. 2<\/b>, 014007 (2014).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    McKay, D. C., Wood, C. J., Sheldon, S., Chow, J. M. & Gambetta, J. M. Efficient Z gates for quantum computing. Phys. Rev. A 96<\/b>, 022330 (2017).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Leonard, E. et al. Digital coherent control of a superconducting qubit. Phys. Rev. Appl. 11<\/b>, 014009 (2019).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Liu, C. H. et al. Single flux quantum-based digital control of superconducting qubits in a multichip module. PRX Quantum 4<\/b>, 030310 (2023).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Somoroff, A. et al. Fluxonium qubits in a flip-chip package. Phys. Rev. Appl. 21<\/b>, 024015 (2024).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Castellanos-Beltran, M. A. et al. Coherence-limited digital control of a superconducting qubit using a Josephson pulse generator at 3\u2009K. Appl. Phys. Lett. 122<\/b>, 192602 (2023).<\/p>\n<\/li>\n

  • \n

    Magesan, E. et al. Efficient measurement of quantum gate error by interleaved randomized benchmarking. Phys. Rev. Lett. 109<\/b>, 080505 (2012).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Liebermann, P. J. & Wilhelm, F. K. Optimal qubit control using single-flux quantum pulses. Phys. Rev. Appl. 6<\/b>, 024022 (2016).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Li, K., McDermott, R. & Vavilov, M. G. Hardware-efficient qubit control with single-flux-quantum pulse sequences. Phys. Rev. Appl. 12<\/b>, 014044 (2019).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Liu, K. et al. Single-flux-quantum-based qubit control with tunable driving strength. Chin. Phys. B 32<\/b>, 128501 (2023).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Shillito, R., Hopfmueller, F., Kulchytskyy, B. & Ronagh, P. Compact pulse schedules for high-fidelity single-flux quantum qubit control. Phys. Rev. Applied 24<\/b>, 014038 (2025).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Vozhakov, V., Bastrakova, M., Klenov, N., Satanin, A. & Soloviev, I. Speeding up qubit control with bipolar single-flux-quantum pulse sequences. Quantum Sci. Technol. 8<\/b>, 035024 (2023).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Catelani, G., Schoelkopf, R. J., Devoret, M. H. & Glazman, L. I. Relaxation and frequency shifts induced by quasiparticles in superconducting qubits. Phys. Rev. B 84<\/b>, 064517 (2011).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Liu, K. et al. Quasiparticle dynamics in superconducting quantum-classical hybrid circuits. Phys. Rev. B 108<\/b>, 064512 (2023).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Gustavsson, S. et al. Suppressing relaxation in superconducting qubits by quasiparticle pumping. Science 354<\/b>, 1573\u20131577 (2016).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Iaia, V. et al. Phonon downconversion to suppress correlated errors in superconducting qubits. Nat. Commun. 13<\/b>, 6425 (2022).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    McEwen, M. et al. Resisting high-energy impact events through gap engineering in superconducting qubit arrays. Phys. Rev. Lett. 133<\/b>, 240601 (2024).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Liu, C. H. et al. Quasiparticle poisoning of superconducting qubits from resonant absorption of pair-breaking photons. Phys. Rev. Lett. 132<\/b>, 017001 (2024).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Kosen, S. et al. Signal crosstalk in a flip-chip quantum processor. PRX Quantum 5<\/b>, 030350 (2024).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Levine, H. et al. Demonstrating a long-coherence dual-rail erasure qubit using tunable transmons. Phys. Rev. X 14<\/b>, 011051 (2024).<\/p>\n


    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Feng, G. et al. Estimating the coherence of noise in quantum control of a solid-state qubit. Phys. Rev. Lett. 117<\/b>, 260501 (2016).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Kirichenko, A. F. et al. System and method of flux bias for superconducting quantum circuits. US patent 12,087,503 \u04122 (2024).<\/p>\n<\/li>\n

  • \n

    Acharya, R. et al. Multiplexed superconducting qubit control at millikelvin temperatures with a low-power cryo-CMOS multiplexer. Nat. Electron. 6<\/b>, 900\u2013909 (2023).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Likharev, K. K. & Semenov, V. K. RSFQ logic\/memory family: a new Josephson-junction technology for sub-terahertz-clock-frequency digital systems. IEEE Trans. Appl. Supercond. 1<\/b>, 3\u201328 (1991).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Kirichenko, D. E., Sarwana, S. & Kirichenko, A. F. Zero static power dissipation biasing of RSFQ circuits. IEEE Trans. Appl. Supercond. 21<\/b>, 776\u2013779 (2011).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Kaplan, S. B. & Mukhanov, O. A. Operation of a superconductive demultiplexer using rapid single flux quantum (RSFQ) technology. IEEE Trans. Appl. Supercond. 5<\/b>, 2853\u20132856 (1995).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Chip Foundry. SEEQC https:\/\/seeqc.com\/foundry-services<\/a> (2026).<\/p>\n<\/li>\n

  • \n

    Johansson, J. R., Nation, P. D. & Nori, F. QuTiP 2: a Python framework for the dynamics of open quantum systems. Comput. Phys. Commun. 184<\/b>, 1234\u20131240 (2013).<\/p>\n<\/li>\n

  • \n

    Pedersen, L. H., M\u00f8ller, N. M. & M\u00f8lmer, K. Fidelity of quantum operations. Phys. Lett. A 367<\/b>, 47\u201351 (2007).<\/p>\n

    Article<\/a>\u00a0
    \n     MathSciNet<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n

  • \n

    Wood, C. J. & Gambetta, J. M. Quantification and characterization of leakage errors. Phys. Rev. A 97<\/b>, 032306 (2018).<\/p>\n

    Article<\/a>\u00a0
    \n
    \n Google Scholar<\/a>\u00a0\n <\/p>\n<\/li>\n","protected":false},"excerpt":{"rendered":"Arute, F. et al. Quantum supremacy using a programmable superconducting processor. Nature 574, 505\u2013510 (2019). Article\u00a0 Google Scholar\u00a0…\n","protected":false},"author":2,"featured_media":818382,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[3845],"tags":[12788,12789,74,7030,70,16,15],"class_list":["post-818381","post","type-post","status-publish","format-standard","has-post-thumbnail","category-physics","tag-electrical-and-electronic-engineering","tag-electrical-engineering","tag-physics","tag-quantum-information","tag-science","tag-uk","tag-united-kingdom"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/116209330797756563","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/818381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=818381"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/818381\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/818382"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=818381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=818381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=818381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}