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Quantum mechanics - news, articles and features

Technology

Which quantum computer is the most powerful ever? It's complicated

IonQ has become the latest company to claim its quantum computer is more powerful than any other computer in existence - despite not having built it yet. But how exactly do you benchmark a quantum computer?

Analysis

Technology

Microsoft says its weird new particle could improve quantum computers

News

An employee among mining rigs at the Evobits crypto farm in Cluj-Napoca, Romania

Technology

Quantum computers could slash the energy use of cryptocurrencies

News

Technology

IBM quantum computer beat a supercomputer in a head-to-head test

News

Extremely cold drop of helium can be levitated forever

Physics

Extremely cold drop of helium can be levitated forever

News

Quantum computers could be built that are based on sound

Physics

Sound-based quantum computers could be built using chip-sized device

News

The are thosands of small pieces of junk orbiting Earth (as well as thousands of satellites)

Physics

Quantum sensors could detect space debris from its gravitational pull

News

Sunlight coming out of the optical fibre

Physics

Sunlight could cool an atom to its coldest possible temperature

News

Technology

'Fluxonium’ is the longest lasting superconducting qubit ever

News

Illustration of particles and their wave functions

Physics

Fundamental law of physics demonstrated using quantum objects

The principle of least action has been a key law of physics since the 18th century, but has only now been directly observed in the quantum realm thanks to an experiment with single particles of light

News

Technology

Sound vibrations can encode and process data like quantum computers do

News

Physics

AI can work out how quantum computers stack up to one another

News

Physics

Superconducting qubits have passed a key quantum test

News

Physics

Why virtual particles don’t exist but do explain reality – for now

Features