Single ion as a three-body reaction center in an ultracold atomic gas.

  title={Single ion as a three-body reaction center in an ultracold atomic gas.},
  author={Arne H{\"a}rter and Artjom Kr{\"u}kow and Andreas Brunner and Wolfgang Schnitzler and Stefan Schmid and Johannes Hecker Denschlag},
  journal={Physical review letters},
  volume={109 12},
We report on three-body recombination of a single trapped Rb(+) ion and two neutral Rb atoms in an ultracold atom cloud. We observe that the corresponding rate coefficient K(3) depends on collision energy and is about a factor of 1000 larger than for three colliding neutral Rb atoms. In the three-body recombination process large energies up to several 0.1 eV are released leading to an ejection of the ion from the atom cloud. It is sympathetically recooled back into the cloud via elastic binary… 

Figures from this paper

Three-body reaction dynamics in cold atom-ion experiments
Over the recent years a new research field emerged that combines technologies for cooling and trapping of neutral atoms and charged ions in one experimental apparatus. These atom-ion hybrid traps
Two-body and three-body dynamics in atom-ion experiments
During the last few decades, the two fields of ultracold neutral atoms and of single trapped ions have undergone an amazing development. The incorporation of both these systems into a single
Life and death of a cold BaRb+ molecule inside an ultracold cloud of Rb atoms
We study the evolution of a single BaRb$^+$ molecule while it continuously collides with ultracold Rb atoms. The initially weakly-bound molecule can undergo a sequence of elastic, inelastic,
Communication: Classical threshold law for ion-neutral-neutral three-body recombination.
A threshold law for the three-body recombination cross section is obtained and the derived threshold law predicts the formation of weakly bound dimers, with binding energies comparable to the collision energy of the collisional partners.
Shedding Light on Three-Body Recombination in an Ultracold Atomic Gas
Three-body recombination is a prime example of the fundamental interaction between three particles. Due to the complexity of this process it has resisted a comprehensive description. Experimental
Ion-Atom and Ion-Molecule Hybrid Systems: Ion-Neutral Chemistry at Ultralow Energies
The study of chemical reactions between ions and neutral species at very low energies reveals precise informations about the dynamics of collisions and fine details of intermolecular interactions.
Ultracold Atom-Ion Systems in Hybrid Traps
This thesis deals with the theoretical description of a hybrid system of an ultracold neutral atom and a single ion. These hybrid atom-ion systems have attracted significant interest in recent years.
Formation of molecular ions by radiative association of cold trapped atoms and ions
Radiative emission during cold collisions between trapped laser-cooled Rb atoms and alkaline-earth ions (Ca+, Sr+, Ba+) and Yb+, and between Li and Yb+, are studied theoretically, using accurate
Spectral properties of a three-body atom-ion hybrid system
We consider a hybrid atom-ion system consisting of a pair of bosons interacting with a single ion in a quasi-one-dimensional trapping geometry. Building upon a model potential for the atom-ion
Interactions and charge-transfer dynamics of anAl+ion immersed in ultracold Rb and Sr atoms
Atomic clocks based on an Al$^+$ ion sympathetically cooled by a laser-cooled alkaline-earth ion have achieved unprecedented accuracy. Here, we investigate theoretically interactions and charge


Dynamics of a cold trapped ion in a Bose-Einstein condensate.
It is demonstrated that a single ion can be used to probe the density profile of an ultracold atom cloud.
  • A. Rosser
  • Medicine
    Maryland medical journal
  • 1990
Results show that the method can determine the scale of the network by itself, and achieves better performance, than the proposed DDWDS.
  • R. Rosenfeld
  • Medicine
    Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
  • 2009
I and J
A and V
PROF. H. A. WILSON is best known for his experimental researches, but this book shows that he is also able to give clear expositions of the more theoretical aspects of modern physics. As he has
  • Sci. Instrum. 83, 053108
  • 2012
  • Rev. Lett. 107, 243202
  • 2011
  • Rev Lett.,105, 133202
  • 2010
  • Mod. Phys. 82, 2609 (2010). PRL 109, 123201
  • 2012