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.

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… ...

Quantum computers can one day be vastly more powerful than the most powerful supercomputers on the planet — but only if scientists find ways to fix the extremely high error rate in qubits.

In 1995, Shor followed his factoring algorithm with another stunner: proof that “quantum error-correcting codes” exist. The computer scientists Dorit Aharonov and Michael Ben-Or (and other ...

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.

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 ...

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 ...

Google’s quantum computer reached an error-correcting milestone The computer’s accuracy improved as scientists used more qubits to fix mistakes ...

While the newly released Form 941-X has improved the adjustment process, employment tax adjustments often remain cumbersome. For a detailed discussion of the issues in this area, see “Correcting ...

The error-correction system failures happened in part because the system is being asked to do so much. For the linear system, the researchers determined that 11 percent of the checks ended up ...

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 ...