Encoding a magic state with beyond break-even fidelity.

ABSTRACT: To run large-scale algorithms on a quantum computer, error-correcting codes must be able to perform a fundamental set of operations, called logic gates, while isolating the encoded information from noise^1-8. We can complete a universal set of logic gates by producing special resources called magic states^9-11. It is therefore important to produce high-fidelity magic states to conduct algorithms while introducing a minimal amount of noise to the computation. Here we propose and implement a scheme to prepare a magic state on a superconducting qubit array using error correction. We find that our scheme produces better magic states than those that can be prepared using the individual qubits of the device. This demonstrates a fundamental principle of fault-tolerant quantum

SUBMITTER: Gupta RS 

PROVIDER: S-EPMC10781628 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature