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Quantum physics

Physics

Nothing is stronger than quantum connections 鈥� and now we know why

The mathematics of graphs has helped reveal a principle that limits the strength of quantum correlations 鈥� and explains why physicists have never measured any stronger connections in some post-quantum realm

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Technology

Quantum computers don鈥檛 always need more qubits 鈥� just add chaos

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Physics

‘Dark photon’ theory of light aims to tear up a century of physics

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Physics

Ultra-secure quantum data sent over existing internet cables

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Abstract prism of light references quantum properties
Physics

Five physicists discuss the achievements and future of quantum theory

Video

Physics

Where exactly does the quantum world end and concrete reality begin?

Features

Physics

Could the ancient Greeks have invented quantum theory?

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Physics

Carlo Rovelli on what we get wrong about the origins of quantum theory

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Physics

A timeline of the most important events in quantum mechanics

Features

Physics

Where Schr枚dinger鈥檚 cat came from 鈥� and why it鈥檚 getting fatter

Schr枚dinger called his metaphorical cat 鈥渜uite ridiculous鈥� but the quantum weirdness it represents has become a useful benchmark for the quantum computing industry, finds our quantum columnist Karmela Padavic-Callaghan

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Physics

Space could emerge from time

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Physics

‘Quantum Darwinism’ may explain why we live in a shared reality

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Space

Quantum eavesdropping could work even from inside a black hole

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Physics

We may have found the edge of quantum theory 鈥� what鈥檚 beyond it?

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