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Collective quench dynamics of active photonic lattices in synthetic dimensions

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Nature Physics, Published online: 01 May 2025; doi:10.1038/s41567-025-02880-2

Synthetic dimensions allow photons and gauge fields to interact in photonic emulators. Now a study with fast-gain lasers shows that gain-driven coherence enables robust light flow in frequency space, establishing it as a viable platform for lattice emulation.