Towards Rydberg quantum logic with trapped ions

Abstract

We demonstrate the excitation of ions to the Rydberg state $22F$ by vacuum ultraviolet radiation at a wavelength of $123\text{nm}$ combined with the coherent manipulation of the optical qubit transition in ${}^{40}{\text{Ca}}^{+}$. With a tightly focused beam at $729\text{nm}$ wavelength we coherently excite a single ion from a linear string into the metastable $3D_{5/2}$ state before a VUV pulse excites it to the Rydberg state. In combination with ion shuttling in the trap, we extend this approach to the addressed excitation of multiple ions. The coherent initialization as well as the addressed Rydberg excitation are key prerequisites for more complex applications of Rydberg ions in quantum simulation or quantum information processing.

15 pages, 11 figures

References in corpus (11)

• Towards fault-tolerant quantum computing with trapped ions
• Realization of a scalable Shor algorithm
• Dynamical crystallization in a low-dimensional Rydberg gas
• Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms
• A Rydberg blockade CNOT gate and entanglement in a 2D array of neutral atom qubits
• Experimental Realization of a Quantum Integer-Spin Chain with Controllable Interactions
• Correlated Exciton Transport in Rydberg-Dressed-Atom Spin Chains
• Experimental realization of fast ion separation in segmented Paul traps
• Rydberg excitation of a single trapped ion
• Hexagonal Plaquette Spin-spin Interactions and Quantum Magnetism in a Two-dimensional Ion Crystal
• Triple resonant four-wavemixing boosts the yield of continuous coherent VUV generation

Cited by in corpus (13)

• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Quantum simulation and computing with Rydberg-interacting qubits
• Coherent control of a single trapped Rydberg ion
• A single strontium Rydberg ion confined in a Paul trap
• A master equation for strongly interacting dipoles
• Trapped Rydberg ions: a new platform for quantum information processing
• Exploring non-equilibrium phases of the generalized Dicke model with a trapped Rydberg ion quantum simulator
• Determination of quantum defect for the Rydberg P series of Ca II
• Precision measurement of the ionization energy of a single trapped ${}^{40}$Ca${}^{+}$ ion by Rydberg series excitation
• Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems
• Tripartite quantum Rabi model with trapped Rydberg ions
• Impact of micromotion and field-axis misalignment on the excitation of Rydberg states of ions in a Paul trap
• The Quantum Abacus: Analog Computing using Surface Rydberg States