Quantum Mechanics III: Open-System Error Budgets Step by Step
A lightweight execution-visualization book.
Open-System Contracts
Shot Vector Is The State Budget
Channel Matrix Maps Counts
Stage Order Changes The Ledger
Bit-Flip and Phase-Loss Budgets
Bit-Flip Budget Is A Channel
Phase Loss Reduces Visible Signal
Bit And Phase Budgets Stay Separate
Leakage and Crosstalk
Leakage Removes Shots From Readout
Retained Shots Feed Assignment
Crosstalk Moves Neighbor Counts
Open-System Audit
Channel Before Readout
Leaked Shots Cannot Disappear
Audit Closes Open-System Budget
Open-System Cross Scans
Leakage Fraction Three-Row Scan
Phase Retention Three-Row Scan
Readout Assignment Three-Row Scan
Open-System Source-Factor Depth Scans
Shot Total Three-Row Scan
Bit-Flip Fraction Three-Row Scan
Crosstalk Move Three-Row Scan
Audit Scale Three-Row Scan