A tilted optical lattice clock driven by two clock-laser tones can realize a tunable Su-Schrieffer-Heeger model, and topological protection can suppress amplitude-noise sensitivity in clock and interferometer protocols.
Demonstration of 4.8 × 10−17 stability at 1 s for two in- dependent optical clocks,
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A symmetry-protected topological optical lattice clock
A tilted optical lattice clock driven by two clock-laser tones can realize a tunable Su-Schrieffer-Heeger model, and topological protection can suppress amplitude-noise sensitivity in clock and interferometer protocols.