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Quantum computers could be built that are based on sound

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-based quantum computers, opening the door for building sound-based quantum computers

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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

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Sunlight coming out of the optical fibre

Physics

Sunlight could cool an atom to its coldest possible temperature

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Technology

'Fluxonium’ is the longest lasting superconducting qubit ever

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Supermassive black hole. Elements of this image furnished by NASA.; Shutterstock ID 1756053335; purchase_order: -; job: -; client: -; other: -

Space

Lab imitations of the unobservable cosmos can be genuinely insightful

Leader

Milky Way. Night sky and silhouette of a standing man

Space

Questions I dread: How did the universe begin, and what is space-time?

Comment

Illustration of particles and their wave functions

Physics

Fundamental law of physics demonstrated using quantum objects

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Technology

Sound vibrations can encode and process data like quantum computers do

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Physics

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

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Physics

Superconducting qubits have passed a key quantum test

A Bell test can confirm whether two systems are truly entangled – it has now been used to confirm entanglement between qubits in a superconducting circuits

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Physics

How we could discover quantum gravity without rebuilding space-time

Features

Physics

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

Features

Physics

To create a wormhole that doesn't collapse, you need exotic matter

Features

Physics

Why symmetry is so fundamental to our understanding of the universe

Features