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  "documentTitle": "IonQ Inc. (IONQ)",
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  "authorName": "Scorpion Capital",
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  "presentationDate": "2022-05-03 00:00:00",
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  "notes": "The slide uses a direct quote from an internal paper to contradict the company's public narrative on scalability.",
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      "text": "With the power to couple arbitrary pairs of qubits, comes the responsibility to ensure that qubit couplings are properly calibrated and can perform accurate gate operations. Therefore, the duty cycle of an ion-trap QC interchanges operational periods and rounds of recalibration...In more mature QC systems with improved coupling quality, more subtle faults will complicate fault detection...Testing (N2) qubit couplings, now already at a quarter of the ion-trap QC duty cycle, is going to consume a larger fraction of time as QC systems scale up....Brute-force diagnosis that checks qubit couplings one at a time scales poorly...",
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      "text": "53% Jobs, 24% Point checks, 19% Calibration, 4% Other",
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      "text": "uptime: 53%",
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      "text": "A former senior technical employee pointed us to a recent paper authored by IonQ staff that quantified the computer’s shockingly poor reliability – only 53% uptime, perhaps a world record for unusability. IonQ appears to have covered up the paper, as it’s missing from their publication page as of the date of this report. The paper describes an onerous and manual cycle of constantly fixing and calibrating the machine, due to qubit coupling and other problems that prevent scaling.",
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      "text": "With the power to couple arbitrary pairs of qubits, comes the responsibility to ensure that qubit couplings are properly calibrated... more subtle faults will complicate fault detection... Testing (N2) qubit couplings... is going to consume a larger fraction of time as QC systems scale up....Brute-force diagnosis that checks qubit couplings one at a time scales poorly...",
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      "text": "“With the power to couple arbitrary pairs of qubits, comes the responsibility to ensure that qubit couplings are properly calibrated and can perform accurate gate operations. Therefore, the duty cycle of an ion-trap QC interchanges operational periods and rounds of recalibration...In more mature QC systems with improved coupling quality, more subtle faults will complicate fault detection...Testing (N2) qubit couplings, now already at a quarter of the ion-trap QC duty cycle, is going to consume a larger fraction of time as QC systems scale up....Brute-force diagnosis that checks qubit couplings one at a time scales poorly...” — Detecting Qubit-coupling Faults in Ion-trap Quantum Computers (IonQ staff paper)",
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      "text": "Source: https://arxiv.org/pdf/2108.03708.pdf",
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