Day 940: Zero-Noise Extrapolation - Noise Scaling and Richardson Extrapolation

Learning Objectives

• •**Implement noise scaling** - Apply pulse stretching and gate folding to amplify noise
• •**Apply Richardson extrapolation** - Use linear and polynomial fits to extract zero-noise values
• •**Analyze extrapolation error** - Quantify uncertainty and optimal scale factor selection
• •**Choose scaling strategies** - Select appropriate methods for different noise types
• •**Optimize ZNE parameters** - Balance accuracy vs sampling cost
• •**Implement ZNE in Qiskit/Mitiq** - Build practical ZNE pipelines

Today's Schedule (7 hours)