But every error-correcting code also requires extra bits that weren’t in the original message — that’s why encoding a message makes it longer. The two types of codes differ in how they treat these ...

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… ...

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 ...

In the HaPPY code and other holographic error-correcting schemes that have been discovered, everything inside a region of the interior space-time called the “entanglement wedge” can be ...

As a bonus, researchers hope holographic space-time might also point the way to scalable quantum computing, fulfilling the long-ago vision of Shor and others. “Space-time is a lot smarter than us,” ...

But parity can’t correct errors, and if there is an even number of errors, then it can’t detect them. ECC took over as a more useful approach, despite its greater complexity. ECC includes a wide array ...

The idea behind the team’s proposed method is that information carried by the starlight could be spread out over a large quantum system in a so-called error-correcting code. Then even if some parts of ...