Controlled long-range interactions between Rydberg atoms and ions

Abstract

We theoretically investigate trapped ions interacting with atoms that are coupled to Rydberg states. The strong polarizabilities of the Rydberg levels increases the interaction strength between atoms and ions by many orders of magnitude, as compared to the case of ground state atoms, and may be mediated over micrometers. We calculate that such interactions can be used to generate entanglement between an atom and the motion or internal state of an ion. Furthermore, the ion could be used as a bus for mediating spin-spin interactions between atomic spins in analogy to much employed techniques in ion trap quantum simulation. The proposed scheme comes with attractive features as it maps the benefits of the trapped ion quantum system onto the atomic one without obviously impeding its intrinsic scalability. No ground state cooling of the ion or atom is required and the setup allows for full dynamical control. Moreover, the scheme is to a large extent immune to the micromotion of the ion. Our findings are of interest for developing hybrid quantum information platforms and for implementing quantum simulations of solid state physics.

arXiv comment20 pages including appendices, 6 figures

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• Cold hybrid ion-atom systems
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• Observation of Rydberg Blockade Induced by a Single Ion
• Long-range Rydberg-atom-ion molecules of Rb and Cs
• Dynamics of a single ion spin impurity in a spin-polarized atomic bath
• Observation of Interactions between Trapped Ions and Ultracold Rydberg Atoms
• Long-range atom-ion Rydberg molecule: A novel molecular binding mechanism
• Many-body bound states and induced interactions of charged impurities in a bosonic bath
• Phase-locking between different partial-waves in atom-ion spin-exchange collisions
• Prospects of reaching the quantum regime in Li-Yb${}^{+}$ mixtures
• Trapped ions in Rydberg-dressed atomic gases
• Mediated interactions between ions in quantum degenerate gases
• Confinement-Induced Resonances in Ultracold Atom-Ion Systems
• Trapped Rydberg ions: a new platform for quantum information processing
• Quantum battery based on dipole-dipole interaction and external driving field
• Quantum-limited thermometry of a Fermi gas with a charged spin particle
• Impact of ion motion on atom-ion confinement-induced resonances in hybrid traps
• Quantum simulation of extended polaron models using compound atom-ion systems
• Non-adiabatic decay of Rydberg-atom-ion molecules
• High-energy-resolution measurement of ultracold atom-ion collisional cross section
• Ultracold ion-atom experiments: cooling, chemistry, and quantum effects
• Improving Efficiency of Sympathetic Cooling in Atom-Ion and Atom-Atom Confined Collisions
• Rydberg atom-ion collisions in cold environments
• Compound atom-ion Josephson junction: Effects of finite temperature and ion motion
• Charge dynamics of a molecular ion immersed in a Rydberg-dressed atomic lattice gas
• Electric field analysis in a cold-ion source using Stark spectroscopy of Rydberg atoms
• Experimental setup for studying an ultracold mixture of trapped Yb${}^{+}$-${}^6$Li
• Charge transfer in ultracold gases via Feshbach resonances
• Electronic structure of ultralong-range Rydberg pentaatomic molecules with two polar diatomic molecules
• Charged ultralong-range Rydberg trimers
• Ion-mediated interaction and controlled phase gate operation between two atomic qubits
• Fermi polaron in atom-ion hybrid systems
• Ultracold Interactions between Ions and Polar Molecules
• Dynamic polarizability of the ${}^{85}$Rb $5D_{3/2}$-state in 1064 nm light
• Operator-based derivation of phonon modes and characterization of correlations for trapped ions at zero and finite temperature
• Bound states of an ultracold atom interacting with a set of stationary impurities
• Quantum reactive scattering in the long-range ion-dipole potential
• Spin controlled atom-ion inelastic collisions
• Vibrationally coupled Rydberg atom-ion molecules