Earth as a Lens for Searching Dark Matter ⚡ экспресс
Original: "Earth-lens telescope for distant axion-like particle sources with stimulated backward reflection"
A new method turns Earth into a gravitational telescope, focusing dark matter particles for detection.
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Earth becomes a lens: its gravity focuses dark matter. A laser illuminates invisible particles, making them flash. Scientists calculated that this way, a signal can be caught even from distant corners of the galaxy.
🎯 The distance to Earth's gravitational focus is roughly the distance light travels in half a minute — farther than Pluto, but still within our solar system.
g/M \sim 10^{-22}\, \mathrm{GeV}^{-1}
probability of an axion converting into a photon
Scientists
Christian DopplerD. B. McLaughlinDidier QuelozMichel MayorR. A. RossiterAlbert Einsteindark matter
spacetime curvature
speed of light
Standard ModelLaws
Doppler effectgravitational lensingprinciple of constancy of the speed of lightNoether's theoremmass–energy equivalenceMaxwell's equations