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.
Is quantum physics behind your brain's ability to think?
2015年12月2日 · Add entanglement to the mix – a quantum feature that allows qubit states to remain intertwined even when not in contact – and you rapidly build a quantum computer that can manipulate and store ...
Google demonstrates vital step towards large-scale quantum …
2021年7月14日 · Google has shown that its Sycamore quantum computer can detect and fix computational errors, an essential step for large-scale quantum computing, but its current system generates more errors than ...
Why it might be impossible to build a practical quantum computer
2021年8月25日 · Physics Why it might be impossible to build a practical quantum computer. After “quantum supremacy”, the next step is scaling up and mastering the errors that dog qubits.
Quantum science news, articles and features | New Scientist
Physics Why string theory has been unfairly maligned - and how to test it. Features. ... China beats Google to claim the world's most powerful quantum computer A team in China has demonstrated ...
Record-breaking quantum computer has more than 1000 qubits
2023年10月24日 · Atom Computing has created the first quantum computer to surpass 1000 qubits, which could improve the accuracy of the machines ... Physics Google’s quantum computer simulation of a wormhole may ...
Quantum computer uses a time crystal as a control dial
2024年2月7日 · Time crystals can be used to stabilise fragile states within quantum computers, which could one day give them an edge over traditional computers.. When Nobel laureate Frank Wilczek first theorised ...
Sound-based quantum computers could be built using chip-sized …
2023年6月8日 · Physics Sound-based quantum computers could be built using chip-sized device. A chip-sized device can manipulate particles of sound in a way that mimics how particles of light are used in light ...
Google wants to solve tricky physics problems with quantum …
2023年12月19日 · Researchers at Google have created an algorithm that can translate complex physical problems into the language of quantum mechanics, which could make quantum computers able to tackle more tasks.
Maxwell’s demon charges quantum batteries inside of a quantum …
2024年6月26日 · A technique to charge a battery inside a quantum computer relies on sorting qubits in an imitation of Maxwell’s demon, a 19th-century thought experiment once thought to break the laws of physics