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Quantum Clocks Sense Gravitational Time Dilation ⚡ экспресс

Original: "Gravitational time dilation in quantum clock interferometry with entangled multi-photon states and quantum memories"
arXiv:2601.02470 · 2026-01-05 · CC BY 4.0 · ⏱ 1 min · Quantum Physics
A light-based experiment reveals how gravity alters time's flow across different floors.
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Gravity slows time: clocks on the ground floor tick slower than those on the roof. A new quantum experiment with entangled photons turns this tiny difference into a noticeable signal, amplifying it many times over. Soon, we might witness "altitude-dependent time" right in the lab.

🎯 Over a year, the clock-time difference between a basement and an attic is less than a billionth of a second—the new method makes it noticeable in just a couple of seconds.

🎬 In the movie "Interstellar," time slows dramatically near a black hole; here, it's a modest but real laboratory echo.

Scientists
Christian DopplerD. B. McLaughlinDidier QuelozMichel MayorR. A. RossiterAlbert Einstein
Tags
spacetime curvature photometry speed of light
Laws
Doppler effectprinciple of constancy of the speed of lightmass–energy equivalenceMaxwell's equationsLorentz transformationsStefan–Boltzmann law
Original: arXiv:2601.02470 · CC BY 4.0 · bridge42worlds