Interactions between ultracold Dy atoms and Yb+ ions
POSTER
Abstract
Hybrid atom–ion systems combine ultracold atomic gases with trapped ions in a single platform, providing a powerful setting for the controlled study of charge–neutral phenomena such as atom–ion interactions, polaron physics, and charge-transfer dynamics. Moreover, the high degree of quantum control achievable in these systems, together with the long-range nature of atom–ion interactions, makes them promising candidates for applications in quantum information processing and quantum simulation [1].
In recent years, major experimental advances have enabled the production of ultracold atomic gases composed of strongly dipolar species, opening access to exotic quantum phases of matter and enhanced control in long-range interacting systems [2]. In particular, ultracold gases of lanthanide atoms, such as erbium (Er) and dysprosium (Dy), have been realized. The large magnetic moments and electric multipole contributions of these atoms give rise to highly anisotropic interactions, offering new avenues for control and tunability [3].
A current goal in the field is the development of hybrid atom–ion systems that combine ultracold dipolar atomic gases with trapped ions, thereby merging rich charge–neutral physics with anisotropic dipolar interactions. In this work, we investigate the atom–ion interactions in the Dy–Yb⁺ system. Using ab initio electronic structure calculations, we characterize both the long-range and short-range interaction potentials. The resulting interaction coefficients and potential energy curves are employed to predict scattering processes and to study the thermalization dynamics of an ion immersed in a dipolar atomic gas. These results are expected to guide forthcoming experimental realizations of hybrid dipolar atom–ion platforms.
[1] M. Tomza, K. Jachymski, R. Gerritsma, A. Negretti, T. Calarco, Z. Idziaszek, and P. S. Julienne, Cold hybrid ion-atom systems, Rev. Mod. Phys. 91, 035001 (2019).
[2] L. Chomaz, I. Ferrier-Barbut, F. Ferlaino, B. Laburthe-Tolra, B. L. Lev, and T. Pfau, “Dipolar physics: A review of experiments with magnetic quantum gases,” Rep. Prog. Phys. 86, 026401 (2022).
[3] S. Kotochigova, “Controlling interactions between highly magnetic atoms with Feshbach resonances,” Rep. Prog. Phys.77, 093901 (2014).
In recent years, major experimental advances have enabled the production of ultracold atomic gases composed of strongly dipolar species, opening access to exotic quantum phases of matter and enhanced control in long-range interacting systems [2]. In particular, ultracold gases of lanthanide atoms, such as erbium (Er) and dysprosium (Dy), have been realized. The large magnetic moments and electric multipole contributions of these atoms give rise to highly anisotropic interactions, offering new avenues for control and tunability [3].
A current goal in the field is the development of hybrid atom–ion systems that combine ultracold dipolar atomic gases with trapped ions, thereby merging rich charge–neutral physics with anisotropic dipolar interactions. In this work, we investigate the atom–ion interactions in the Dy–Yb⁺ system. Using ab initio electronic structure calculations, we characterize both the long-range and short-range interaction potentials. The resulting interaction coefficients and potential energy curves are employed to predict scattering processes and to study the thermalization dynamics of an ion immersed in a dipolar atomic gas. These results are expected to guide forthcoming experimental realizations of hybrid dipolar atom–ion platforms.
[1] M. Tomza, K. Jachymski, R. Gerritsma, A. Negretti, T. Calarco, Z. Idziaszek, and P. S. Julienne, Cold hybrid ion-atom systems, Rev. Mod. Phys. 91, 035001 (2019).
[2] L. Chomaz, I. Ferrier-Barbut, F. Ferlaino, B. Laburthe-Tolra, B. L. Lev, and T. Pfau, “Dipolar physics: A review of experiments with magnetic quantum gases,” Rep. Prog. Phys. 86, 026401 (2022).
[3] S. Kotochigova, “Controlling interactions between highly magnetic atoms with Feshbach resonances,” Rep. Prog. Phys.77, 093901 (2014).
Presenters
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Mateo Londoño
- stony brook university