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2 stories for“quantum entanglement”

Physicists in Japan Cracked a 25-Year Puzzle in Measuring One of the Hardest Forms of Quantum Entanglement

A Kyoto University and Hiroshima University team demonstrated the first method for identifying W state entanglement among three photons, closing a gap that had resisted physicists since the state was first described in the late 1990s.

Oct 1, 2026

Technology

Physicists Made Entangled Photons Out of Ordinary Sunlight, Which Was Supposed to Require a Laser

A team in Ottawa and Erlangen put a window sized lens in the sun, funnelled the light down a glass cone into a fibre the width of a hair, and got entangled photons at ninety four per cent fidelity. The Sun is not supposed to be able to do this.

Aug 25, 2026