Ultracold gases

Ultracold gases are ensembles of atoms held at a temperature near absolute zero. Such systems enable the creation of exotic phenomena such as Bose–Einstein condensation. Ultracold gases are also useful simulating condensed-matter systems because their tunability opens the door to effects that are otherwise difficult to observe.

Latest Research and Reviews

News and Comment

  • Comments & Opinion |

    Methods for studying Bose–Einstein condensation in ultracold gases have been under development for over 40 years. A highly sophisticated suite of techniques has emerged from rapid technological advances that show no sign of slowing down.

    • Jook Walraven
    Nature Physics 17, 1294-1295
  • News & Views |

    Interacting quantum systems are difficult to formulate theoretically, but Nikolai Bogoliubov offered a workaround more than 70 years ago that has stood the test of time. Now, correlations that are a crucial feature of his theory have been observed.

    • S. S. Hodgman
    •  & A. G. Truscott
    Nature Physics 17, 1289-1290
  • News & Views |

    The two-fluid model of superfluids predicts a second, quantum mechanical form of sound. Ultracold atom experiments have now measured second sound in the unusual two-dimensional superfluid described by the Berezinskii–Kosterlitz–Thouless transition.

    • Sandro Stringari
    Nature Physics 17, 770-771