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.

An error, in this model, can be any unwanted flip of a 0 into a 1 or vice versa, whether it’s due to a random fluctuation or deliberate tampering. Pravesh Kothari proved a new result about the limits ...

When running a server, especially one with mission-critical applications, it’s common practice to use error-correcting code (ECC) memory. As the name suggests, it uses an error-correcting alg… ...

According to Kenta Takeda, the first author of the paper, “The idea of implementing a quantum error-correcting code in quantum dots was proposed about a decade ago, so it is not an entirely new ...

So, how do quantum error-correcting codes work? The trick to protecting information in jittery qubits is to store it not in individual qubits, but in patterns of entanglement among many. As a simple ...

For example, with Nord Quantique’s current error-correcting system, instead of needing 1,000 physical qubits for one logical qubit, they might, say, only need 100.

This “single-error-correct, double-error-detect” approach is often abbreviated SECDED. ECC has evolved as the technology has matured. “The first generation of ECC at the SoC level was SECDED,” said ...

Super-resolution experiments on the horizon The researchers showed that this quantum error-correction technique for imaging is helpful even with near-term quantum devices by investigating one of the ...