But logic does not only help a computer to view the world, it also offers the possibility of introspection: computer codes can check other computer codes and look for logical errors.

A quantum computer corrected its own errors, improving its calculations . It’s a step in the right direction for reliable quantum computing ...

Once that nuclear science barrier was passed in 1942, it led to technologies like nuclear power and atomic bombs (SN: 11/29/17). As quantum computers gradually draw closer to practical usefulness ...

Scientists have designed a physical qubit that behaves as an error-correcting "logical qubit," and now they think they can scale it up to make a useful quantum computer using a few hundred.

The 200 logical qubits it promises will be enough to handle some problems, but not enough to perform the complex algorithms needed to do things like break encryption.

Google's new 105-qubit 'Willow' quantum processor has surpassed a key error-correction threshold first proposed in 1995 — with errors now reducing exponentially as you scale up quantum machines.

This time around, the company is showing that it can get an actual logical qubit into a variant of the same hardware. In the earlier version of its equipment, the resonator cavity had a single ...