QuantumLeap: Quantum Computing

Quantum computing can feel abstract. QuantumLeap makes core ideas touchable through eight concise lessons, exact circuit challenges, and an interactive two-qubit state-vector simulator. LEARN AT YOUR PACE • Work from classical bits and qubits through measurement, superposition, gates, entanglement, interference, and noise. • Check your understanding with three applied questions in every lesson. • Continue where you left off with progress stored only on your device. BUILD QUANTUM CIRCUITS • Apply Hadamard, Pauli-X, Pauli-Z, and CNOT gates. • Inspect all four basis-state probabilities and complex amplitudes. • Try verified guided circuits for Bell pairs, interference, SWAP, Grover search, and superdense coding. • See how phase changes interference without changing immediate measurement probabilities. SOLVE CIRCUIT CHALLENGES • Recreate exact one- and two-qubit target states with limited gates. • Follow a curated 12-puzzle practice path with a distinct physical target on every board. • Solve one offline daily challenge from a 23-target no-repeat cycle and build a local streak. • Get credit for physically equivalent states that differ only by global phase. PRIVATE BY CONSTRUCTION • Works offline. • No account. • No ads or analytics. • No personal-data collection or sharing. • Reset lesson and challenge progress at any time. QuantumLeap models ideal one- and two-qubit systems. It does not connect to physical hardware and is intended for general education, not as a substitute for a formal course or professional advice.