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    Parity-Time Symmetry Opens Up New Avenues for Controlling Light

    Article obtained from Photonics RSS Feed.

    Researchers at Tampere University have experimentally demonstrated that studies in quantum photonics can be scaled up to encompass a broader spectrum of quantum mechanics than previously believed. The experiment made use of parity-time (PT) symmetry, a relatively new frame of reference that extends the traditional Hermitian quantum mechanics framework to increase the number of systems that can be described using quantum theory. The researchers demonstrated two-photon quantum interference in a PT-symmetric system.

    The experimental setup was based on the Hong-Ou-Mandel (HOM) effect. Two photons were combined inside a beam splitter. To monitor their quantum interference, photodetectors were placed at each of the two output ports of the…

    Oct, 18 2019 |

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