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.
IBM says it will build a practical quantum supercomputer by 2029
Jun 10, 2025 · All quantum computers rely on quantum bits, or qubits, but some teams make these building blocks from particles of light, others from extremely cold atoms, and in the case …
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 …
Quantum computers are on the edge of revealing new particle …
Jun 4, 2025 · Quantum computers are beginning to become powerful tools for studying some of the most fundamental forces in the universe – and some of the trickiest to understand. Two …
Is Google's new Willow quantum computer really such a big deal?
Dec 9, 2024 · Researchers at the tech giant were the first in the world to demonstrate this feat, known as quantum supremacy, with the announcement of the Sycamore quantum computing …
Quantum computers are on track to solve knotty mathematical …
Mar 27, 2025 · Quantum computers could soon be able to solve genuinely useful mathematical problems faster than classical computers, claims quantum computing firm Quantinuum. It …
Qubit breakthrough could make it easier to build quantum …
May 29, 2025 · A Canadian quantum computing start-up claims its new qubit will enable much smaller and cheaper error-free quantum computers. But getting there will be a steep …
Best quantum 'transistor' yet could lead to more accurate computers
Jun 2, 2025 · Microwaves can control a single quantum bit more precisely than ever before, creating a device similar to a quantum transistor – and potentially making quantum computers …
Multiple nations enact mysterious export controls on quantum …
Jul 3, 2024 · Technology Multiple nations enact mysterious export controls on quantum computers. Identical wording placing limits on the export of quantum computers has appeared …
IBM quantum computer beat a supercomputer in a head-to-head …
Jun 14, 2023 · They compared the performance of IBM’s Eagle quantum computer, which contains 127 quantum bits, or qubits, with that of a supercomputer at the Lawrence Berkeley …