What is a quantum computer? - New Scientist
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.
Quantum computers turned out to be more useful than expected in 2025
5 days ago · 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
At last, we are discovering what quantum computers will be useful for
Jun 23, 2025 · Over the past decade, quantum computing has grown into a billion-dollar industry. Everyone seems to be investing in it, from tech giants, such as IBM and Google, to the US military. …
Quantum computers are finally on the verge of being useful
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 materials …
Quantum computers need classical computing to be truly useful
Nov 21, 2025 · A vital ingredient for making quantum computers truly useful just might be conventional computers. That was the message from a gathering of researchers this month, which explained that …
Quantum computers have finally achieved unconditional supremacy
Sep 19, 2025 · Technology Quantum computers have finally achieved unconditional supremacy For the first time, researchers have mathematically proven that a quantum computer needs less …
IBM says it will build a practical quantum supercomputer by 2029
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 end of the …
Google says its quantum computer can reveal the structure of molecules
Oct 22, 2025 · A new quantum computing protocol may be able to augment a standard technique for understanding molecules in chemistry, biomedicine and materials science
Best quantum 'transistor' yet could lead to more accurate computers
Jun 2, 2025 · A new record has been set for extremely precise control over qubits, the building blocks of quantum computers. This advance could lead to quantum computers that make fewer errors – if it …
Record-breaking quantum computer has more than 1000 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 having more …