Cold trapped molecular ions and hybrid platforms for ions and neutral particles

Abstract

We review recent progress in the field of cold trapped molecular ions. A new generation of collision and cold chemistry experiments between atoms and ions has emerged, where cold atoms and ions are brought into contact in a controlled way in novel hybrid atom-ion platforms. Furthermore, new possibilities for the preparation and detection of molecular quantum states with high sensitivity and precision have been demonstrated based on quantum-logic schemes. These advances represent important stepping stones for new directions in fundamental research and technological applications across various domains including precision measurements, quantum technologies and chemical dynamics.

arXiv commentreview article, 10 pages, 6 figures

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• Quantum state manipulation and cooling of ultracold molecules
• Interacting Circular Rydberg Atoms Trapped in Optical Tweezers
• Exploring atom-ion Feshbach resonances below the s-wave limit
• Ion counting and temperature determination of Coulomb-crystallized laser-cooled ions in traps using convolutional neural networks
• Rigorous quantum calculations for atom-molecule chemical reactions in electric fields: from single to multiple partial wave regimes
• Rotational excitation in sympathetic cooling of diatomic molecular ions by laser-cooled atomic ions
• Charge Exchange Dynamics in Cold Collisions of ${}^{40}$CaH${}^{+}$ and ${}^{39}$K
• Nonextensive Thermodynamics of the Morse Oscillator: Signature and Solid State Application
• Universality in Ionic Three-body Systems Near an Ion-atom Feshbach Resonance