Day 890: Physical Qubit Counting

Learning Objectives

• •**Calculate the physical qubit overhead** from logical qubit requirements using code distance formulas
• •**Determine optimal code distances** based on target error rates and algorithm depth
• •**Quantify factory overhead** including distillation qubit requirements
• •**Account for routing and ancilla qubits** in practical architectures
• •**Apply the complete qubit counting formula** to benchmark quantum algorithms
• •**Understand the scaling implications** of physical qubit requirements

Today's Schedule (7 hours)