Cold heteronuclear atom-ion collisions

Abstract

We study cold heteronuclear atom ion collisions by immersing a trapped single ion into an ultracold atomic cloud. Using ultracold atoms as reaction targets, our measurement is sensitive to elastic collisions with extremely small energy transfer. The observed energy-dependent elastic atom-ion scattering rate deviates significantly from the prediction of Langevin but is in full agreement with the quantum mechanical cross section. Additionally, we characterize inelastic collisions leading to chemical reactions at the single particle level and measure the energy-dependent reaction rate constants. The reaction products are identified by in-trap mass spectrometry, revealing the branching ratio between radiative and non-radiative charge exchange processes.

References in corpus (15)

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Cited by in corpus (83)

• Dynamics of a cold trapped ion in a Bose-Einstein condensate
• Cold hybrid ion-atom systems
• Light-assisted ion-neutral reactive processes in the cold regime: radiative molecule formation vs. charge exchange
• Millikelvin Reactive Collisions between Sympathetically-Cooled Molecular Ions and Laser-Cooled Atoms in an Ion-Atom Hybrid Trap
• Micromotion-induced Limit to Atom-Ion Sympathetic Cooling in Paul Traps
• Controlling chemical reactions of a single particle
• Sympathetic and swap cooling of trapped ions by cold atoms in a MOT
• Cold atom-ion experiments in hybrid traps
• Energy scaling of cold atom-atom-ion three-body recombination
• Decoherence of a single-ion qubit immersed in a spin-polarized atomic bath
• Multichannel quantum-defect theory for ultracold atom-ion collisions
• Cold interactions between an Yb${}^{+}$ ion and a Li atom: Prospects for sympathetic cooling, radiative association, and Feshbach resonances
• Long-range vs. short-range effects in cold molecular ion-neutral collisions: Charge exchange of Rb with N${}_2^{+}$ and O${}_2^{+}$
• Neutral gas sympathetic cooling of an ion in a Paul trap
• Observation of collisions between cold Li atoms and Yb${}^{+}$ ions
• Kinetics of a single trapped ion in an ultracold buffer gas
• Evidence of sympathetic cooling of Na+ ions by a Na MOT in a hybrid trap
• Sympathetic cooling of the Ba${}^{+}$ ion by collisions with ultracold Rb atoms: theoretical prospects
• A bosonic Josephson junction controlled by a single trapped ion
• The role of electronic excitation in cold atom-ion chemistry
• Reaction blockading in charged-neutral excited-state chemistry at low collision energy
• Formation of molecular ions by radiative association of cold trapped atoms and ions
• Structure of the Alkali-metal-atom-Strontium molecular ions: towards photoassociation and formation of cold molecular ions
• Charge-exchange collisions between ultracold fermionic lithium atoms and calcium ions
• Controlled long-range interactions between Rydberg atoms and ions
• Characterization of charge-exchange collisions between ultracold ${}^6\mathrm{Li}$ atoms and ${}^{40}\mathrm{C}{\mathrm{a}}^{+}$ ions
• Suppression of Ion Transport due to Long-Lived Sub-Wavelength Localization by an Optical Lattice
• Long-range Rydberg-atom-ion molecules of Rb and Cs
• Quantum Langevin model for exoergic ion-molecule reactions and inelastic processes
• Formation of ultracold SrYb molecules in an optical lattice by photoassociation spectroscopy: theoretical prospects
• Cold trapped molecular ions and hybrid platforms for ions and neutral particles
• Interaction between LiH molecule and Li atom from state-of-the-art electronic structure calculations
• Quantum-defect theory for $-1/r^4$ type of interactions
• Dynamics of a single ion spin impurity in a spin-polarized atomic bath
• Differential Scattering Cross-Sections for the Different Product Vibrational States in the Ion-Molecule Reaction Ar+ + N2
• Quantum dynamics of an atomic double-well system interacting with a trapped ion
• Reactive two-body and three-body collisions of Ba${}^{+}$ in an ultracold Rb gas
• Charge transfer in the cold Yb${}^{+}$ + Rb collisions
• Ion-neutral sympathetic cooling in a hybrid linear rf Paul and magneto-optical trap
• Prospects of reaching the quantum regime in Li-Yb${}^{+}$ mixtures
• Optimized magnetic lattices for ultracold atomic ensembles
• Trapped ions in Rydberg-dressed atomic gases
• Ion-atom cold collision: Formation of cold molecular ion by radiative processes
• Quantum impurities: from mobile Josephson junctions to depletons
• Combined ion and atom trap for low temperature ion-atom physics
• Quantum walks: the first detected transition time
• Spin-orbit interactions and quantum spin dynamics in cold ion-atom collisions
• Doppler cooling thermometry of a multi-level ion in the presence of micromotion
• Controlling the potential landscape and normal modes of ion Coulomb crystals by a standing wave optical potential
• Measurement of low-energy Na^+ -- Na total collision rate in an ion--neutral hybrid trap
• Signature of the $s$-wave regime high above ultralow temperatures
• Confinement-Induced Resonances in Ultracold Atom-Ion Systems
• Quantum-Logic Detection of Chemical Reactions
• Ultracold, radiative charge transfer in hybrid Yb ion - Rb atom traps
• Ultracold magnetically tunable interactions without radiative charge transfer losses between Ca${}^{+}$, Sr${}^{+}$, Ba${}^{+}$, and Yb${}^{+}$ ions and Cr atoms
• Trap-assisted complexes in cold atom-ion collisions
• Quantum-defect theory of resonant charge exchange
• Quantum-limited thermometry of a Fermi gas with a charged spin particle
• Structure and interactions of ultracold Yb ions and Rb atoms
• Effect of ion-trap parameters on energy distributions of ultra-cold atom-ion mixtures
• Ion trap with integrated time-of-flight mass spectrometer
• Lattice assisted spectroscopy: a generalized scanning tunnelling microscope for ultra-cold atoms
• Floquet Heating in Interacting Atomic Gases with an Oscillating Force
• Single-shot energy measurement of a single atom and the direct reconstruction of its energy distribution
• Interactions and low energy collisions between an alkali ion and an alkali atom of different nucleus
• Operation of a Microfabricated Planar Ion-Trap for Studies of a Yb${}^{+}$-Rb Hybrid Quantum System
• Proposal for laser-cooling of rare-earth ions
• Hybrid quantum systems of atoms and ions
• Electric field analysis in a cold-ion source using Stark spectroscopy of Rydberg atoms
• Long-range interactions between an atom in its ground S state and an open-shell linear molecule
• Excitation-assisted nonadiabatic charge-transfer reaction in a mixed atom-ion system
• High-resolution collision energy control through ion position modulation in atom-ion hybrid systems
• Laser controlled charge-transfer reaction at low temperatures
• Loading a linear Paul trap to saturation from a magneto-optical trap
• Sub-Micron Positioning of Trapped Ions with Respect to the Absolute Center of a Standing Wave Cavity Field
• Ultracold Interactions between Ions and Polar Molecules
• Off-resonance energy absorption in a linear Paul trap due to mass selective resonant quenching
• The energy distribution of an ion in a radiofrequency trap interacting with a nonuniform neutral buffer gas
• Quantum suppression of cold reactions far from the s-wave energy limit
• Thermal Atom-Ion Collisions in K-Yb${}^{+}$ Hybrid System
• Hybrid quantum systems of ions and atoms
• Cold interactions and chemical reactions of linear polyatomic anions with alkali-metal and alkaline-earth-metal atoms
• Realization of a chip-based hybrid trapping setup for ${}^{87}$Rb atoms and Yb${}^{+}$ Ion crystals