An ultracold gas plus an ion! In our project, we plan to realize a new-generation atom-ion machine in order to realize new quantum simulations of a many-body system in the presence of one or more localized impurities. With this setup, we plan to investigate fundamental atom-ion interactions in the ultracold regime, and to use these controlled interactions to realize a platform for investigating out-of-equilibrium quantum systems and quantum thermodynamics.

The future of atom-ion hybrid systems is in optical ion trapping

One of the main limitations in state-of-the-art atom-ion experiments is represented by the micromotion component of the ions’ dynamics in a Paul trap that prevents atom-ion mixtures from undergoing a coherent evolution. Overcoming this problem requires a completely new approach to ion trapping. Our solution is a novel micromotion-free electro-optical trap based on the combination of an optical and a static electrostatic field. In this paper, we describe the geometry and the assembly of an electro-optical trap explicitly designed for experiments with atom-ion mixtures, in our case a mixture of Barium ions and Lithium atoms. We also report the results of the numerical simulations performed on the electric and thermal behavior of the trap, providing fundamental information for establishing the trapping potential and the stability region.

E. Perego, et al.
Electro-Optical Ion Trap for Experiments with Atom-Ion Quantum Hybrid Systems
Appl. Sci. 2020, 10, 2222 (2020)

Ba+/Li people

Daniele Scorsino
Master student
Federico Berto
PhD student
Amelia Detti
PhD student
Elia Perego
Postdoctoral fellow
Lucia Duca
Postdoctoral fellow
Massimo Inguscio
Scientific staff
Carlo Sias
Scientific staff

Ba+/Li contacts

Project website:

www.ultracoldplus.eu

For further information, request of material, job opportunities, please contact:

Carlo Sias
(sias@lens.unifi.it)

Ba+/Li funding

ERC StG PLUSONE
MIUR SIR