# Controlling chemical reactions of a single particle

@article{Ratschbacher2012ControllingCR,
title={Controlling chemical reactions of a single particle},
author={Lothar Ratschbacher and Christoph Zipkes and Carlo Sias and Michael K{\"o}hl},
journal={Nature Physics},
year={2012},
volume={8},
pages={649 - 652}
}
• Published 20 June 2012
• Physics, Chemistry
• Nature Physics
Chemical reactions between a single trapped ion and a condensate of ultracold neutral atoms are investigated by controlling the quantum states of both ion and atoms—revealing the effect of the hyperfine interaction on the reaction dynamics. Traditionally, chemical reactions have been investigated by tuning thermodynamic parameters, such as temperature or pressure. More recently, laser1 or magnetic field2 control methods have emerged to provide new experimental possibilities, in particular in…
• Physics
• 2021
Studies of chemical reactions by a single pair of atoms in a well defined quantum state constitute a corner stone in quantum chemistry. Yet, the number of demonstrated techniques which enable
• Chemistry, Physics
Nature Chemistry
• 2019
The reaction between an excited atom and a charged molecule has now been studied at low temperature and a reaction blockading effect has been observed that differs significantly from what is expected from standard chemical capture theory.
• Physics, Chemistry
Nature Communications
• 2018
Spin-exchange process is discussed and the spin state of an ensemble of neutral Rb atoms can be used to control the final spin of an imbedded Sr+ ion in the collisions, which agrees with theoretical predictions.
• Physics
Nature Physics
• 2022
Studies of interactions between a single pair of atoms in a quantum state are a corner-stone of quantum chemistry, yet the number of demonstrated techniques that enable the observation and control of
Interactions between neutral and ionized atoms are medium-range, and the spiraling nature of these collisions can lead to long interaction times and large crosssections. The field of ion-neutral
• Physics
• 2021
Laser cooling of atomic ions has long been used as a tool in physics to explore quantum entanglement for applications in quantum computing and information. More recently, laser-cooled atomic ions
• Physics
Physical review letters
• 2012
A study of cold reactive collisions between sympathetically cooled molecular ions and laser-cooled atoms in an ion-atom hybrid trap provides a test of classical models for reactions of molecular ions at the lowest energies reached thus far.
• Physics
Reviews of Modern Physics
• 2019
Hybrid systems of laser-cooled trapped ions and ultracold atoms combined in a single experimental setup have recently emerged as a new platform for fundamental research in quantum physics. This paper
• Physics
Nature
• 2021
Feshbach resonances between ions and atoms are demonstrated, using magnetically tunable interactions between 138Ba+ ions and 6Li atoms, giving access to complex many-body systems and applications in experimental quantum simulation.

## References

SHOWING 1-10 OF 30 REFERENCES

• Physics
Nature
• 2010
This work investigates whether atomic quantum gases and single trapped ions can be advantageously combined into one hybrid system, by exploring the immersion of a single trapped ion into a Bose–Einstein condensate of neutral atoms.
• Physics, Chemistry
• 2012
The role of electronic excitation in charge exchange chemical reactions between ultracold Ca atoms and Ba + ions, conﬁned in a hybrid trap, is studied. This prototypical system is energetically
• Physics
• 2011
The immersion of a single ion confined by a radiofrequency (RF) trap in an ultracold atomic gas extends the concept of buffer gas cooling to a new temperature regime. The steady-state energy
• Physics, Chemistry
• 2006
Photoassociation is the process in which two colliding atoms absorb a photon to form an excited molecule. The development of laser-cooling techniques for producing gases at ultracold !!1 mK"
• Physics, Chemistry
Physical review letters
• 2011
The structure of the CaYb+ molecule is determined and used in a calculation that explains the fast chemical reaction as a consequence of strong radiative charge transfer.
• Physics
• 2011
A mixed system of cooled and trapped, ions and atoms, paves the way for ion assisted cold chemistry and novel many body studies. Due to the different individual trapping mechanisms, trapped atoms are
• Chemistry, Materials Science
• 2006
Chemical reactions between ultracold $^{9}\mathrm{Be}^{+}$ ions and room-temperature molecular hydrogen isotopomers and between ultracold ${\mathrm{H}}_{3}^{+}$ ions and room-temperature
• Physics
Physical review letters
• 2010
Cold heteronuclear atom-ion collisions are studied by immersing a trapped single ion into an ultracold atomic cloud and measuring the energy-dependent reaction rate constants, revealing the branching ratio between radiative and nonradiative charge exchange processes.
• Physics
Physical review letters
• 2012
It is experimentally demonstrated that it is possible to mitigate inelastic collision loss mechanisms in these systems, marking an important step toward long-lived hybrid atom-ion devices.
• Physics
• 2003
New experiments were proposed recently to investigate the regime of cold atomic and molecular ion-atom collision processes in a special hybrid neutral-atom-ion trap under high-vacuum conditions. We