Creating an Ultra-Stable Lunar Clock with a Cryogenic Silicon Cavity Laser.

Phase-coherent lasers are crucial for many precision tasks, including timekeeping. Here on Earth the most stable optical oscillators are used in e.g. atomic clocks and many ultra-precise scientific measurements, such as gravitational wave detection.

⁉️Since these optical oscillators use cryogenic silicon cavities, it’s completely logical to take this principle and build a cryogenic silicon cavity laser on the Moon.⁉️

https://www.arxiv.org/abs/2602.06352

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