Ultracold gases

Definition

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

  • Research |

    The combination of interparticle interactions and a synthetic gauge field leads to chirality in the propagation dynamics of particles in a ladder-like lattice.

    • M. Eric Tai
    • , Alexander Lukin
    • , Matthew Rispoli
    • , Robert Schittko
    • , Tim Menke
    • , Dan Borgnia
    • , Philipp M. Preiss
    • , Fabian Grusdt
    • , Adam M. Kaufman
    •  & Markus Greiner
    Nature 546, 519–523
  • Research | | open

    It is an open challenge to implement a coherent quantum annealer with fully programmable all-to-all connectivity. Here the authors present a scheme based on enhanced Rydberg-dressed interactions between neutral atoms in an optical lattice which is programmable by individual addressing of local fields.

    • A. W. Glaetzle
    • , R. M. W. van Bijnen
    • , P. Zoller
    •  & W. Lechner
  • Research | | open

    Parity-time (PT) symmetry has been mainly studied in optical and weakly interacting open quantum systems without many-body correlations. Here the authors show that in a strongly correlated many-body system the interplay between correlations and PT symmetry leads to the emergence of new critical phenomena.

    • Yuto Ashida
    • , Shunsuke Furukawa
    •  & Masahito Ueda
  • Research | | open

    Atom interferometers can be used in precision measurements and to test the fundamental laws of physics. Here the authors test the weak equivalence principle in the quantum regime with high sensitivity using a Bragg atom interferometer with rubidium atoms in their hyperfine states.

    • G. Rosi
    • , G. D’Amico
    • , L. Cacciapuoti
    • , F. Sorrentino
    • , M. Prevedelli
    • , M. Zych
    • , Č. Brukner
    •  & G. M. Tino
  • Research |

    An antiferromagnet with a correlation length that encompasses the whole system is created with the aid of quantum gas microscopy of cold atoms in an optical lattice.

    • Anton Mazurenko
    • , Christie S. Chiu
    • , Geoffrey Ji
    • , Maxwell F. Parsons
    • , Márton Kanász-Nagy
    • , Richard Schmidt
    • , Fabian Grusdt
    • , Eugene Demler
    • , Daniel Greif
    •  & Markus Greiner
    Nature 545, 462–466

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