Day 942: Symmetry Verification - Post-Selection and Symmetry Expansion

Learning Objectives

• •**Identify exploitable symmetries** - Recognize conservation laws in quantum algorithms
• •**Implement post-selection** - Filter results based on symmetry violations
• •**Design symmetry verification circuits** - Add ancilla-based symmetry checks
• •**Apply symmetry expansion** - Use multiple symmetry sectors for bias reduction
• •**Calculate acceptance rates** - Estimate post-selection efficiency
• •**Combine with other techniques** - Integrate symmetry verification with ZNE and PEC

Today's Schedule (7 hours)