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LIVE GATE DEMO

Detect hardware failure in real time and stop bad runs early

Works across any quantum workload — QEC, VQE, QAOA, calibration, tomography, benchmarking.

SCENARIO CONFIGURATION

Savings scenario: Doom rate (35%) exceeds threshold (20%). Early abort will trigger, demonstrating cost savings.

WITHOUT QUBITBOOST

Shots Executed0 / 100,000

—

Shots Run

—

Doom Rate

—

Total Cost

—

Usable Shots

WITH QUBITBOOST

Shots Executed0 / 100,000

—

Shots Run

—

Doom Detected

—

Total Cost

—

Usable Shots

SAFETY & OPERATIONAL GUARANTEES

  • Live Gate never increases total cost
  • Worst-case behavior: no abort (full job runs as normal)
  • Abort decisions are statistically justified (confidence-based)
  • No changes to circuits, hardware, or user workloads
  • Fully optional and policy-controlled
  • Applicable to any executable quantum job, not limited to QEC workloads

What does "abort" mean?

An abort stops further execution when early evidence shows the job is statistically likely to fail. Partial results are preserved for diagnostics, but remaining shots are not run to avoid wasted cost.

HOW LIVE GATE WORKS

1. PROBE

Run an initial probe phase (~10% of budget) using probe circuits or workload-specific doom detectors.

2. EVALUATE

Calculate statistical confidence interval on doom rate. If confidence lower bound exceeds threshold, abort is triggered.

3. SAVE

Early abort prevents wasting budget on remaining doomed shots. Savings depend on workload and abort timing.

HARDWARE EVIDENCE

LiveGate's doom detection is validated through ShotValidator hardware experiments on IBM Fez — 27 QEC configurations, 216K shots, 74% mean error reduction. The hardest config (d=7, r=8, f=3) eliminated all 63 logical errors.

216K

Shots validated

74%

Mean error reduction

63 → 0

Errors eliminated (d7)

View full hardware results on ShotValidator page →

FAQ

Could this abort a job that would eventually succeed?

Yes. Live Gate is a conservative safety layer. It may abort borderline jobs to protect budget when early evidence indicates elevated failure risk.

What if the doom rate estimate is wrong early on?

Abort decisions are based on a statistical confidence interval, not point estimates. Abort only triggers when the lower bound of the confidence interval exceeds the configured threshold.

Is this backend- or workload-specific?

Live Gate uses backend-calibrated doom detectors but applies uniformly across workloads. Policy inputs are tunable per backend, cost tier, or experiment class.

Technical Notes

Live Gate performs per-shot doom detection during an initial probe phase using probe circuits. As shots accumulate, a statistical confidence interval is computed over the observed doom rate. If the lower bound of this interval exceeds the configured abort threshold, execution halts early to prevent further budget waste.