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    "story_id": "mp-2026-11-11-014",
    "source_story_id": "tmp-story-fluxonium-picosecond-control",
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    "headline": "Picosecond Pulses Take Control of Fluxonium",
    "slug": "picosecond-pulses-take-control-of-fluxonium",
    "dek": "Two single-flux-quantum protocols address the leakage and gate-time tradeoff that frustrates low-frequency qubit control.",
    "summary": "Two single-flux-quantum protocols address the leakage and gate-time tradeoff that frustrates low-frequency qubit control.",
    "body_text": "A proposed fluxonium-control strategy uses picosecond single-flux-quantum pulses from Josephson digital circuits. One protocol sends high-frequency pulse packets through the flux channel for a simpler, robust drive; a second combines phase-shifted flux and charge sequences to shorten the gate. Multilevel simulations report single-qubit fidelities above 99.99%, with the simpler protocol tolerating moderate parameter and bias changes. The work is a simulation-based control proposal rather than an experimental gate demonstration.",
    "why_it_matters": "Two single-flux-quantum protocols address the leakage and gate-time tradeoff that frustrates low-frequency qubit control.",
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    "tags": [
      "fluxonium",
      "picosecond",
      "sfq",
      "control",
      "protocols"
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  "sources": [
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      "title": "arXiv:2611.14358v1",
      "publisher": "arXiv / Cornell University",
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    "title": "Picosecond Pulses Take Control of Fluxonium",
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