Quantum Computers, From First Principles: What They Are and What They Provably Run Faster
Superposition, entanglement, and interference — then the actual proofs: Deutsch–Jozsa, Grover, Shor, and the honest limits

Superposition, entanglement, and interference — then the actual proofs: Deutsch–Jozsa, Grover, Shor, and the honest limits

Two conservation laws, derived from scratch with first-year calculus, then measured to check.