Individual Addressing and State Readout of Trapped Ions Utilizing Radio-Frequency Micromotion

Abstract

Excess "micromotion" of trapped ions due to the residual radio-frequency (rf) trapping field at their location is often undesirable and is usually carefully minimized. Here, we induce precise amounts of excess micromotion on individual ions by adjusting the local static electric field they experience. Micromotion modulates the coupling of an ion to laser fields, ideally tuning it from its maximum value to zero as the ion is moved away from the trap's rf null. We use tunable micromotion to vary the Rabi frequency of stimulated Raman transitions over two orders of magnitude, and to individually control the rates of resonant fluorescence from three ions under global laser illumination without any changes to the driving light fields. The technique is amenable to situations where addressing individual ions with focused laser beams is challenging, such as tightly packed linear ion strings or two-dimensional ion arrays illuminated from the side.

arXiv commentNKL and JFN contributed equally to this work

References in corpus (43)

• Trapped-Ion Quantum Computing: Progress and Challenges
• Programmable Quantum Simulations of Spin Systems with Trapped Ions
• An ${}^{27}$Al${}^{+}$ quantum-logic clock with systematic uncertainty below $10^{-18}$
• Single-Ion Atomic Clock with $3\times 10^{-18}$ Systematic Uncertainty
• Deterministic entanglement of two trapped ions
• Demonstration of the trapped-ion quantum-CCD computer architecture
• Frequency ratio of two optical clock transitions in ${}^{171}$Yb${}^{+}$ and constraints on the time-variation of fundamental constants
• Quantum chemistry calculations on a trapped-ion quantum simulator
• Improved limit on a temporal variation of $m_p/m_e$ from comparisons of Yb${}^{+}$ and Cs atomic clocks
• A Race Track Trapped-Ion Quantum Processor
• Ion-trap quantum logic using long-wavelength radiation
• Integrated multi-wavelength control of an ion qubit
• Highly charged ions: optical clocks and applications in fundamental physics
• Demonstration of fault-tolerant universal quantum gate operations
• Integrated optical multi-ion quantum logic
• Integrated optical addressing of an ion qubit
• High-fidelity laser-free universal control of two trapped ion qubits
• Quantum gate teleportation between separated qubits in a trapped-ion processor
• Entangling logical qubits with lattice surgery
• Individual addressing of trapped ions and coupling of motional and spin states using rf radiation
• Observing emergent hydrodynamics in a long-range quantum magnet
• Entanglement of Trapped-Ion Clock States
• A Michelson-Morley Test of Lorentz Symmetry for Electrons
• Precise determination of micromotion for trapped-ion optical clocks
• Electrostatics of surface-electrode ion traps
• High-fidelity Two-qubit Gates Using a MEMS-based Beam Steering System for Individual Qubit Addressing
• Laserless trapped-ion quantum simulations without spontaneous scattering using microtrap arrays
• A trapped-ion based quantum byte with $10^{-5}$ next-neighbour cross-talk
• Individual-Ion Addressing with Microwave Field Gradients
• Individual addressing of ions using magnetic field gradients in a surface-electrode ion trap
• Controlling two-dimensional Coulomb crystals of more than 100 ions in a monolithic radio-frequency trap
• Improved bounds on Lorentz violation from composite-pulse Ramsey spectroscopy in a trapped ion
• A quantum computer using a trapped-ion spin molecule and microwave radiation
• Controlling long ion strings for quantum simulation and precision measurements
• Individual addressing and state readout of trapped ions utilizing rf- micromotion
• Suppression of mid-circuit measurement crosstalk errors with micromotion
• Trapped-Ion Quantum Logic Utilizing Position-Dependent ac Stark Shifts
• Microwave control electrodes for scalable, parallel, single-qubit operations in a surface-electrode ion trap
• Addressing Two-Level Systems Variably Coupled to an Oscillating Field
• Micromotion-enabled improvement of quantum logic gates with trapped ions
• Coherent Control of Trapped Ion Qubits with Localized Electric Fields
• Single-ion addressing via trap potential modulation in global optical fields
• Individual addressing of trapped ion qubits with geometric phase gates

Cited by in corpus (1)

• Radio-Frequency Pseudo-Null Induced by Light in an Ion Trap