Logical vs. Physical Qubits
Understand how error correction turns many noisy physical qubits into one reliable logical qubit. Logical qubits allow quantum computers to perform accurate calculations despite imperfections in real hardware.
Key Concepts:
- Errors in quantum computing: decoherence, noise, and gate inaccuracies.
- Fidelity: measure of how accurately a qubit or gate performs.
- Logical vs. Physical Qubits: combining many noisy physical qubits into one stable logical qubit.
- Fault Tolerance: essential before large-scale, practical quantum computing is possible.
Classical vs Quantum Computer: Cluster State
Click the chips and qubits to see how classical and quantum systems behave.