Cold hybrid electrical-optical ion trap

Abstract

Advances in research such as quantum information and quantum chemistry require subtle methods for trapping particles (including ions, neutral atoms, molecules, etc.). Here we propose a hybrid ion trapping method by combining a Paul trap with optical tweezers. The trap combines the advances of the deep-potential feature for the Paul trap and the micromotion-free feature for the optical dipole trap. By modulating the optical-dipole trap synchronously with the radio frequency voltage of the Paul trap, the alternating electrical force in the trap center is fully counteracted, and the micromotion temperature of a cold trapped ion can reach the order of nK while the trap depth is beyond 300K. These features will enable cold collisions between an ion and an atom in the $s$-wave regime and stably trap the produced molecular ion in the cold hybrid system. This will provide a unique platform for probing the interactions between the ions and the surrounding neutral particles and enable the investigation of new reaction pathways and reaction products in the cold regime.

11 pages, 5 figures

References in corpus (27)

• Cold hybrid ion-atom systems
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• Micromotion-induced Limit to Atom-Ion Sympathetic Cooling in Paul Traps
• Optical Trapping of an Ion
• Cold atom-ion experiments in hybrid traps
• Observation of Collisions between Two Ultracold Ground-State CaF Molecules
• Imaging the onset of the resonance regime in low-energy NO-He collisions
• Bimolecular chemistry in the ultracold regime
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• High resolution adaptive imaging of a single atom
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• Observation of Chemical Reactions between a Trapped Ion and Ultracold Feshbach Dimers
• Observation of vibrational dynamics of orientated Rydberg-atom-ion molecules
• Multichannel interactions of two atoms in an optical tweezer
• Observation of trap-assisted formation of atom-ion bound states
• Quantum-Logic Detection of Chemical Reactions
• Resonant control of elastic collisions between ${}^{23}$Na${}^{40}$K molecules and ${}^{40}$K atoms
• Trap-assisted complexes in cold atom-ion collisions
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