Demonstrating a superconducting dual-rail cavity qubit with erasure-detected logical measurements

Understand

A critical challenge in developing scalable error-corrected quantum systems is the accumulation of errors while performing operations and measurements.

• One promising approach is to design a system where errors can be detected and converted into erasures.
• Such a system utilizing erasure qubits are known to have relaxed requirements for quantum error correction.
• A recent proposal aims to do this using a dual-rail encoding with superconducting cavities.