Experimental confirmation that the Gouy phase can modify the photonic de Broglie wavelength opens up many exciting directions in metrology using quantum systems with higher-order Gaussian modes.
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Gu, X., Krenn, M. Phase anomaly brings quantum implications. Nat. Photon. 16, 815–817 (2022). https://doi.org/10.1038/s41566-022-01118-4
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DOI: https://doi.org/10.1038/s41566-022-01118-4
