Quantum metrology articles from across Nature Portfolio

Quantum metrology uses quanta — individual packets of energy — for setting the standards that define units of measurement and for other high-precision research. Quantum mechanics sets the ultimate limit on the accuracy of any measurement. Quantum metrology, therefore, uses quantum effects to enhance precision beyond that possible through classical approaches.


Latest Research and Reviews

News and Comment

  • News & Views |

    Controlling the spatial distribution of optically active spin defects in solids is a long-standing goal in the quantum sensing and simulation communities. Measurements of the many-body noise generated by the spins were used to verify that a highly coherent and strongly interacting quantum spin system was confined to two dimensions within a diamond substrate.

  • News & Views |

    Two superconductors connected by a weak link form a Josephson junction, a nonlinear circuit element at the heart of many quantum devices. Quantized electrical current steps that were predicted decades ago have now been observed experimentally.

    • Gianluca Rastelli
    •  & Ioan M. Pop
  • News & Views |

    ‘Squeezing’ of light can be used to alter the distribution of quantum noise to benefit quantum sensing and other applications. An improved design for a microwave photon squeezer provides high performance over a large bandwidth.

    • Baleegh Abdo
  • News & Views |

    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.

    • Xuemei Gu
    •  & Mario Krenn
    Nature Photonics 16, 815-817
  • News & Views |

    Ensembles of weakly interacting atoms have enabled some of the most precise measurements ever made. Now researchers have shown that making these atoms work together in a strongly interacting regime can boost sensitivity by orders of magnitude.

    • Shannon Whitlock
    Nature Physics 18, 1391-1392