IBM Releases Qiskit Paulice to Embed Low-Overhead Spacetime Error-Detection Codes Directly into Near-Term Clifford Circuits - Quantum Computing Report

IBM Quantum has officially launched Qiskit Paulice (qiskit-paulice), an open-source Qiskit software add-on engineered to automatically identify, score, and inject hardware-efficient error-detection loops into arbitrary quantum circuits. Co-developed by IBM researchers Simon Martiel and Ali Javadi-Abhari, the package introduces spacetime Pauli checks to mitigate hardware noise profiles on current Noisy Intermediate-Scale Quantum (NISQ) chips. Unlike conventional hardware-intensive Fault-Tolerant Quantum Computing (FTQC) layouts slated for 2029 deployment, or time-intensive error-mitigation methods like Zero-Noise Extrapolation (ZNE) and Probabilistic Error Cancellation (PEC) that demand exponential sampling time, Paulice functions as a postselected error correction tool. It isolates and filters out corrupt execution trajectories with [...]

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