Experimental demonstration of topological error correction

Understand

Topological error correction--a novel method to actively correct errors based on cluster states with topological properties--has the highest order of tolerable error rates known to date (10^{-2}).

• Moreover, the scheme requires only nearest-neighbour interaction, particularly suitable for most physical systems.
• Here we report the first experimental demonstration of topological error correction with an 8-qubit optical cluster state.
• In the experiment, it is shown that a correlation can be protected against a single error on any single qubit.