A Tabletop Light Maze Captures Gravity ⚡ экспресс
Original: "50-km fiber interferometer for testing gravitational signatures in quantum interference"
A 50-kilometer fiber-optic labyrinth on a table has enabled the first direct measurement of how gravity shifts the wave of a single photon.
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On a regular lab table, they fit 50 km of fiber optics. Through it, they send single photons. Gravity slightly slows time, and the light wave shifts. They caught that shift for the first time—like a whisper from across a football field. In the future, this could help search for traces of gravity in the quantum world.
🎯 Gravity affects light so weakly that rising just one meter changes its frequency by only 10^-16. In this experiment, they caught a phase shift of 0.06 milliradians—like noticing a wheel turn by the width of a hair.
🎬 In Interstellar, characters sent signals through gravity. Real tabletop light labyrinths already show how quantum particles get tangled in curved space.
Scientists
Christian DopplerD. B. McLaughlinDidier QuelozMichel MayorR. A. RossiterAlbert Einsteinspacetime curvature
speed of light
gravitational wavesLaws
Doppler effectprinciple of constancy of the speed of lightmass–energy equivalenceEinstein field equationsMaxwell's equationsLorentz transformations