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.

Qubits can be made by floating a suspended electron over a pool of liquid helium rather than being embedded them a solid-state crystal — which leads to impurities and errors.

IBM's latest System One quantum computer is based at the Rensselaer Polytechnic Institute (RPI) and is the 1st IBM quantum machine to be installed at a university campus in the U.S.

Scientists used a technique called 'active syndrome extraction' to build four logical qubits from 30 physical ones and run 14,000 experiments without detecting a single error.

Quantum computers will break encryption one day. But converting data into light particles and beaming them around using thousands of satellites might be one way around this problem.

A new technique in quantum storage that operates at room temperature could pave the way for a quantum internet.

Qubits are normally made from superconducting metals and need to be cooled to near absolute zero to avoid collapsing. But scientists just built an error-free "logical qubit" from a single laser pulse — and it works at room temperature.

QuEra has dramatically reduced the error rate in qubits — with its first commercially available machine using this technology launching with 256 physical qubits and 10 logical qubits.

Scientists overcame a limitation in graphene to harness the material as a working semiconductor at terahertz frequencies with 10 times the mobility of silicon.