Keeping Quantum Computers Running at Peak Performance
Quantum computers are not static systems. Qubit parameters drift on timescales of hours to milliseconds, gate fidelities fluctuate, readout characteristics shift, and calibration data goes stale faster than in any classical system. Applied Quantum provides the calibration engineering, validation methodology, and ongoing operational support that keeps quantum platforms performing at their best — whether we built the system or you acquired it elsewhere.
Our Expertise
Our calibration and operations practice draws on deep understanding of quantum hardware behaviour — T₁ and T₂ fluctuations, frequency collisions, crosstalk dynamics, readout drift, and the calibration protocols required to manage them. We combine this physics knowledge with operational engineering: automated calibration pipelines, continuous monitoring, drift detection, and performance trending — turning what is traditionally a manual, ad hoc lab activity into a systematic, repeatable operations discipline.
Initial Calibration and System Bring-Up
For newly assembled quantum platforms, we perform the full initial calibration sequence: qubit frequency characterisation, single- and two-qubit gate optimisation (including DRAG pulse tuning and cross-resonance calibration for superconducting systems), readout optimisation and assignment matrix construction, crosstalk characterisation, and baseline coherence measurements. We establish the system’s performance envelope and document it as the calibration baseline.
Continuous Calibration and Drift Management
Quantum hardware drifts — and stale calibration data directly degrades computation quality. We design and deploy continuous calibration processes that track parameter changes and re-optimise in near real-time. This includes automated recalibration schedules, per-shot or per-circuit inline calibration where the hardware supports it, and drift detection algorithms that trigger recalibration when parameters move outside acceptable bounds.
Benchmarking and Validation
We benchmark quantum platforms using rigorous, reproducible methodology — including randomised benchmarking, quantum volume, CLOPS (circuit layer operations per second), application-specific benchmarks, and cross-platform comparison where relevant. We provide independent validation reports that quantify system performance against agreed targets. For organisations procuring quantum hardware, we offer pre-acceptance and post-delivery validation services.
Operational Support and System Evolution
Quantum systems require ongoing attention beyond calibration: firmware updates, component replacements, performance regression investigation, and integration of new capabilities. We provide tiered operational support — from periodic health checks and calibration refreshes to embedded operational teams for high-availability quantum facilities. When better QPUs, controllers, or software components become available, we plan and execute the upgrade.
Whether you need initial calibration for a newly built platform, ongoing operational support for an existing quantum facility, or independent benchmarking and validation before accepting delivery of a quantum system — we keep quantum computers running at peak performance. Contact us to discuss your operational requirements.
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