Cascaded heterodyne detection in a coupled-ring photonic molecule enables single-shot winding-number measurements for SSH, extended SSH, and alternating-flux Creutz ladder lattices in the synthetic frequency dimension.
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Measuring $\mathbb{Z}_2$ invariants in dimer models and cross-coupled ladders with a programmable photonic molecule
Cascaded heterodyne detection in a coupled-ring photonic molecule enables single-shot winding-number measurements for SSH, extended SSH, and alternating-flux Creutz ladder lattices in the synthetic frequency dimension.