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IBM Quantum

All 5 posts tagged IBM Quantum, newest first. Cited technical writing on quantum computing, IBM Z modernization and open hardware.

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Qiskit's Client-Side Estimator Makes PEC Noise Learning Explicit

Qiskit's client-side Estimator requires explicit PEC and PEA noise models. Check their freshness, record learning times and account for calibration drift.

Oct 15, 20265 min readquantum-computingerror-mitigationQiskitIBM Quantum

Record a Calibration Capture Rate Before the Backfill Erases It

An archive of IBM calibration data missed 27 of 227 documents in a week. Why the figure had to be pinned before the backfill, and its cost in device states.

Oct 12, 20265 min readquantum-computingIBM Quantumopen-source

A Noise Engine That Installs Zero Qiskit Aer Errors Still Returns Successfully

Eligibility derived from IBM calibration gate lengths stopped noise landing on zero-duration rz gates and left an uncompiled circuit with an empty noise model.

Sep 21, 20265 min readquantum-computingQiskitIBM Quantumopen-source

Dynamical Decoupling Exposed a Spurious Subthreshold Result on IBM Heavy-Hex

Dynamical decoupling reversed an apparent subthreshold trend for a surface code on IBM heavy-hex hardware. Here is the mechanism and the numbers.

Sep 17, 20265 min readquantum-computingquantum-error-correctionsurface-codeIBM Quantumdynamical-decoupling

Error Detection Plus Probabilistic Error Cancellation: Up to a 63-Fold Cut in Sampling Overhead

An IBM preprint composes post-selection with probabilistic error cancellation using a spacetime noise model, cutting inferred sampling overhead up to 63-fold.

Sep 16, 20265 min readquantum-computingerror-mitigationquantum-error-correctionIBM Quantum

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