Additional qubits can be used as sensors to detect errors and allow interventions to correct them. Recently, there have been a number of demonstrations that logical qubits work in principle.

This report discusses methods to detect and correct errors automatically, and methods to select records that should preferably be corrected manually (selective and macro-editing).

This report discusses methods to detect and correct errors automatically, and methods to select records that should preferably be corrected manually (selective and macro-editing).

The solution to this is to use what are called logical qubits, which distribute quantum information across multiple hardware qubits and allow the detection and correction of errors when they occur.

This encoding method allows quantum information to retain enough data, even in the presence of noise and interference, to detect and correct errors.

In this paper, we investigate an architectural-level mitigation technique based on the coordinated action of multiple checksum codes, to detect and correct errors at run-time.

This breakthrough now allows additional error correction capacity and extra means for detecting errors, while keeping the number of qubits static.