KleinProbe: A Circuit-Conditioned Statistical Estimator for Effective Quantum Hardware Noise

Key Points

• The research aims to define a statistical estimator for the execution state of quantum hardware based on circuit-specific measurements.
• Defines a circuit-conditioned statistical estimator of the latent quantum execution state.
• Utilizes lightweight structured syndrome probes on selected physical qubits by the transpiler.
• Supports single-layout measurements and multi-tile execution for comparative analysis across processor regions.
• The estimator characterizes the effective execution environment for specific circuit instances.
• Demonstrates functionality across different layouts and processor regions with minimal experimental footprint.