Frequency Stability of 2.5×10−17 from a Si Cavity with AlGaAs Crystalline MirrorsRemoveDahyeon Lee, Zoey Z. Hu, Ben Lewis, Alexander Aeppli, Kyungtae Kim, Zhibin Yao, Thomas Legero, Daniele Nicolodi, Fritz Riehle, Uwe Sterr, and Jun YePhys. Rev. Lett. 136, 033801 (2026)
