Atomic and molecular collision processes articles within Nature

Featured

  • Article
    | Open Access

    Ultracold polyatomic molecules can be created by electroassociation in a degenerate Fermi gas of microwave-dressed polar molecules through a field-linked resonance.

    • Xing-Yan Chen
    • , Shrestha Biswas
    •  & Xin-Yu Luo

  • Article |

    The proton-transfer tunnelling reaction rate between H2 and D– has been measured as about 1 out of 1011 collisions, making it the slowest rate constant ever measured for an ion–molecule reaction in the gas phase.

    • Robert Wild
    • , Markus Nötzold
    •  & Roland Wester

  • Article
    | Open Access

    A type of universal scattering resonance between ultracold microwave-dressed polar molecules associated with field-linked tetramer bound states in the long-range potential well is observed, providing a general strategy for resonant scattering between ultracold polar molecules.

    • Xing-Yan Chen
    • , Andreas Schindewolf
    •  & Xin-Yu Luo

  • Article |

    Observations of a pronounced and narrow Feshbach resonance in collisions between two triplet ground-state NaLi molecules are described, providing evidence for the existence of long-lived coherent intermediate complexes even in systems without reaction barriers.

    • Juliana J. Park
    • , Yu-Kun Lu
    •  & Wolfgang Ketterle

  • Article
    | Open Access

    A general and efficient approach to evaporatively cool ultracold polar molecules through elastic collisions to create a degenerate quantum gas in three dimensions is demonstrated using microwave shielding.

    • Andreas Schindewolf
    • , Roman Bause
    •  & Xin-Yu Luo

  • Article |

    Magnetically tunable interactions between lithium atoms and barium ions are used to demonstrate and probe Feshbach resonances between atoms and ions, which could have applications in the fields of experimental quantum simulation and fundamental physics.

    • Pascal Weckesser
    • , Fabian Thielemann
    •  & Tobias Schaetz

  • Article |

    A strongly interacting gas of polar molecules is created by combining an electric field with two-dimensional optical confinement, enabling evaporative cooling and opening up the exploration of low-entropy many-body phases.

    • Giacomo Valtolina
    • , Kyle Matsuda
    •  & Jun Ye

  • Article |

    NaLi molecules are cooled to micro- and nanokelvin temperatures through collisions with ultracold Na atoms by using molecules and atoms in stretched hyperfine spin states and applying two evaporation stages.

    • Hyungmok Son
    • , Juliana J. Park
    •  & Alan O. Jamison

  • Letter |

    Improved techniques allow the measurement of a frequency difference with an uncertainty of the order of 10–19 between two independent atomic optical lattice clocks, suggesting that they may be able to improve state-of-the-art geodetic techniques.

    • W. F. McGrew
    • , X. Zhang
    •  & A. D. Ludlow

  • Letter |

    Clock spectroscopy of ultracold strontium atoms in a three-dimensional optical lattice is used to observe the onset of multi-body interactions that result from the underlying pairwise interactions between atoms.

    • A. Goban
    • , R. B. Hutson
    •  & J. Ye

  • Letter |

    The interaction between antiprotons, produced by colliding high-energy gold ions, is shown to be attractive, and two important parameters of this interaction are measured, namely the scattering length and the effective range.

    • L. Adamczyk
    • , J. K. Adkins
    •  & M. Zyzak

  • Letter |

    In combination with sympathetic cooling of translational degrees of freedom (leading to Coulomb crystallization), cooling of the rotational degrees of freedom of magnesium hydride ions using a helium buffer gas leads to temperatures in a tunable range from 60 kelvin down to about 7 kelvin for a single ion, the lowest such temperature so far recorded.

    • A. K. Hansen
    • , O. O. Versolato
    •  & M. Drewsen

  • Letter |

    The vibrational motion of trapped BaCl+ molecules can be quenched by collisions with ultracold calcium atoms at a rate comparable to the classical scattering rate; this method is over four orders of magnitude more efficient than traditional sympathetic cooling schemes and should be applicable to many different types of molecule.

    • Wade G. Rellergert
    • , Scott T. Sullivan
    •  & Eric R. Hudson

  • Editorial |

    What will scientists do if they fail to find the Higgs boson?

Browse broader subjects

Browse Atomic and molecular collision processes across other nature.com journals