Arcade Game
Qubit Defender
Decoherence, bit-flips, and phase-flips are attacking your qubits. Select a correction gate and click to neutralize threats before they drain your qubits' fidelity to zero.
Fixes bit-flip errors — click on canvas to apply
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Qubit Defender
🔴 X — Destroy bit-flip threats
🟠 Z — Destroy phase-flip threats
⚡ H — Shield nearby qubits temporarily
Click canvas to apply gates · Protect qubit fidelity
What you're defending against
The threats in this game mirror real quantum hardware challenges. Bit-flip errors (X) and phase-flip errors (Z) are the two fundamental Pauli error types in real quantum error correction — and the correction gates you're clicking are literally the same X and Z gates used in real quantum error correction to fix them. Decoherence represents the general environmental noise threatening qubit fidelity over time.