#blochsphere — Public Fediverse posts
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Updated: I added the aha-chapter that I was missing.
"Quantum computers try all possibilities in parallel" is the popular line — and it's dangerously misleading. A measurement collapses everything to one random answer, so "parallel" on its own is useless.
The actual move: a quantum algorithm is ONE global linear transformation on a 2^n-amplitude vector, designed so wrong answers destructively cancel and the right one amplifies. Classical searches. Quantum shapes.
Walkthrough with a Grover-style bar chart in four snapshots, plus the full pipeline: superconducting oscillator → Josephson junction → Bell state → amplitude amplification → Shor / Grover / simulation.
🔗 https://ki-mathias.de/en/quantum-computing.html
🎥 https://youtu.be/iMaqNfA0Gs0 (9:14, HD)
📦 Qiskit notebooks: https://github.com/pmmathias/quantum-computing#quantumcomputing #qiskit #qubit #interference #grover #blochsphere #physics #education