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Quantum optics

Phase anomaly brings quantum implications

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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Fig. 1: The classical and quantum Gouy phase.


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Correspondence to Xuemei Gu.

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Gu, X., Krenn, M. Phase anomaly brings quantum implications. Nat. Photon. 16, 815–817 (2022).

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