Example Concept: Quantum error correction codes, like the Shor code, utilize entangled qubits to form logical qubits that can detect and correct errors. By entangling multiple physical qubits, these codes create redundancy, allowing errors to be identified through syndrome measurements without collapsing the quantum state. The surface code, another example, uses a lattice of entangled qubits to provide topological protection against errors, making it highly robust against local noise.