Quantum optics

Quantum optics is the study of how individual quanta of light, known as photons, interact with atoms and molecules. This includes studying the particle-like properties of photons. Photons have been used to test many of the counter-intuitive predictions of quantum mechanics, such as entanglement and teleportation, and are a useful resource for quantum information processing.

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News and Comment

  • News and Views |

    Josephson vortices are observed at the boundary between two exciton-polariton condensates, with lasers used to create the required local phase twist. The finding opens new opportunities for exploring fundamental physics and engineering novel quantum devices.

    • Taehyun Yoon
    •  & Na Young Kim
    Nature Photonics 13, 441-442
  • News and Views |

    A magnetic-field-dependent spectroscopy study on single perovskite nanocrystals reveals the spectral signatures of an exciton dark state below the bright triplet states.

    • Andries Meijerink
    •  & Freddy T. Rabouw
    Nature Materials 18, 660-661
  • News and Views |

    The race of distributing provable-secure encryption keys by means of quantum key distribution over ever-increasing distances is on. A surprising development has now led to a new result that may affect how we build future quantum networks.

    • Wolfgang Tittel
    Nature Photonics 13, 310-311
  • Comments and Opinion |

    The 2005 Nobel laureate, Roy Jay Glauber, sadly passed away on 26 December 2018 at the age of 93. He was highly regarded for his work on the quantum theory of coherence, as well as for his contributions to nuclear physics, scattering theory and statistical mechanics.

    • Fritz Haake
    •  & Maciej Lewenstein
    Nature Photonics 13, 299-301