In a quantum computer, the basic unit of memory is a quantum bit or qubit. Qubits are made using physical systems, such as the spin of an electron or the orientation of a photon.

Jun 23, 2025 · Physics At last, we are discovering what quantum computers will be useful for Quantum computers have been hyped as machines that can solve almost any problem.

Dec 19, 2025 · Rapid advances in the kind of problems that quantum computers can tackle suggest that they are closer than ever to becoming useful tools of scientific discovery

Dec 30, 2024 · IBM is planning to build the largest quantum computer so far, by linking together smaller machines to create one with a recording-breaking number of quantum bits, or qubits. …

Oct 24, 2023 · The world’s first quantum computer to exceed 1000 qubits has more than double that of the previous record holder, IBM’s Osprey machine, which has 433 qubits. Though …

Sep 18, 2025 · Technology Quantum computers are finally on the verge of being useful Two experiments with different quantum computers showcase their growing ability to simulate …

Mar 10, 2025 · Researchers have criticised Microsoft's new Majorana 1 quantum computer, saying the company has made claims about the way it works that aren't fully backed up by …

Jun 10, 2025 · The company has unveiled new innovations in quantum hardware and software that researchers hope will make quantum computing both error-proof and useful before the …

Dec 18, 2024 · A quantum computing start-up is developing its own operating system to run quantum machines, akin to Microsoft Windows or macOS on a standard computer. The …

Sep 30, 2024 · Analysis and Technology Useful quantum computers are edging closer with recent milestones Google, Microsoft and others have taken big steps towards error-free devices, …