Reduction of anomalous heating in an in-situ-cleaned ion trap

Abstract

Anomalous heating of trapped atomic ions is a major obstacle to their use as quantum bits in a scalable quantum computer. The physical origin of this heating is not fully understood, but experimental evidence suggests that it is caused by electric-field noise emanating from the surface of the trap electrodes. In this study, we have investigated the role that adsorbates on the electrodes play by identifying contaminant overlayers, developing an in situ argon-ion beam cleaning procedure, and measuring ion heating rates before and after cleaning the trap electrodes' surfaces. We find a reduction of two orders of magnitude in heating rate after cleaning.

7 pages, 1 figure

References in corpus (12)

• A microfabricated surface-electrode ion trap for scalable quantum information processing
• Scaling and Suppression of Anomalous Quantum Decoherence in Ion Traps
• Suppression of Heating Rates in Cryogenic Surface-Electrode Ion Traps
• Ion traps with enhanced optical and physical access
• Temperature Dependence of Electric Field Noise Above Gold Surfaces
• Simplified motional heating rate measurements of trapped ions
• Fabrication and heating rate study of microscopic surface electrode ion traps
• Experimental quantum information processing with 43Ca+ ions
• Sideband cooling and coherent dynamics in a microchip multi-segmented ion trap
• Adsorbate induced enhancement of electrostatic non-contact friction
• Superconducting microfabricated ion traps
• A long-lived memory qubit on a low-decoherence quantum bus

Cited by in corpus (105)

• Trapped-Ion Quantum Computing: Progress and Challenges
• High-fidelity two-qubit quantum logic gates using trapped calcium-43 ions
• High-fidelity quantum logic gates using trapped-ion hyperfine qubits
• Ion-trap measurements of electric-field noise near surfaces
• Highly charged ions: optical clocks and applications in fundamental physics
• Single-qubit quantum memory exceeding $10$-minute coherence time
• Suppressing qubit dephasing using real-time Hamiltonian estimation
• Space-time crystals of trapped ions
• Fifteen Years of Cold Matter on the Atom Chip: Promise, Realizations, and Prospects
• High-fidelity trapped-ion quantum logic using near-field microwaves
• Double-quantum spin-relaxation limits to coherence of near-surface nitrogen-vacancy centers
• Tunable spin-spin interactions and entanglement of ions in separate wells
• High-fidelity Two-qubit Gates Using a MEMS-based Beam Steering System for Individual Qubit Addressing
• Engineering of Microfabricated Ion Traps and Integration of Advanced On-Chip Features
• BASE - The Baryon Antibaryon Symmetry Experiment
• Controlling trapping potentials and stray electric fields in a microfabricated ion trap through design and compensation
• Simulating the performance of a distance-3 surface code in a linear ion trap
• Demonstration of a dressed-state phase gate for trapped ions
• Realization of near-deterministic arithmetic operations and quantum state engineering
• Experimental realization of fast ion separation in segmented Paul traps
• Integrated optical addressing of a trapped ytterbium ion
• Dissipation-Assisted Quantum Information Processing with Trapped Ions
• A far-off-resonance optical trap for a Ba${}^{+}$ ion
• Measuring anomalous heating in a planar ion trap with variable ion-surface separation
• Heating and ion transport in a Y-junction surface-electrode trap
• Fast ion swapping for quantum information processing
• Measurement of Ion Motional Heating Rates over a Range of Trap Frequencies and Temperatures
• Electric field sensing near the surface microstructure of an atom chip using cold Rydberg atoms
• Electric field cancellation on quartz: a Rb adsorbate induced negative electron affinity surface
• On the spectral origin of non-Markovianity: an exact finite model
• Kelvin probe force microscopy of metallic surfaces used in Casimir force measurements
• Microwave Near-Field Quantum Control of Trapped Ions
• Distance scaling of electric-field noise in a surface-electrode ion trap
• A microfabricated ion trap with integrated microwave circuitry
• Hybrid quantum systems with trapped charged particles
• Electric-Field Noise above a Thin Dielectric Layer on Metal Electrodes
• Coherent manipulation of cold Rydberg atoms near the surface of an atom chip
• Reducing detrimental electrostatic effects in Casimir-force measurements and Casimir-force-based microdevices
• Extending the Quantum Coherence of a Near-Surface Qubit by Coherently Driving the Paramagnetic Surface Environment
• Floquet-engineered vibrational dynamics in a two-dimensional array of trapped ions
• Quantum computation and simulation with vibrational modes of trapped ions
• Evidence for multiple mechanisms underlying surface electric-field noise in ion traps
• Electric-field noise from thermally-activated fluctuators in a surface ion trap
• Trapping Ions and Atoms Optically
• High-Fidelity Ion State Detection Using Trap-Integrated Avalanche Photodiodes
• A Single-Ion Trap with Minimized Ion-Environment Interactions
• Integrated ${}^9$Be${}^{+}$ multi-qubit gate device for the ion-trap quantum computer
• Limits on the accuracy of isoelectronic gravity measurements at short separation due to patch potentials
• Transport Implementation of the Bernstein-Vazirani Algorithm with Ion Qubits
• Single qubit manipulation in a microfabricated surface electrode ion trap
• Influence of monolayer contamination on electric-field-noise heating in ion traps
• Long-term drifts of stray electric fields in a Paul trap
• Reduction of trapped ion anomalous heating by in situ surface plasma cleaning
• Interference in a Prototype of a two-dimensional Ion Trap Array Quantum Simulator
• Two-dimensional linear trap array for quantum information processing
• Measurements of trapped-ion heating rates with exchangeable surfaces in close proximity
• Electric-field noise from carbon-adatom diffusion on a Au(110) surface: first-principles calculations and experiments
• Scalable, high-fidelity all-electronic control of trapped-ion qubits
• Two mode coupling in a single ion oscillator via parametric resonance
• Spin Dephasing as a Probe of Mode Temperature, Motional State Distributions, and Heating Rates in a 2D Ion Crystal
• Implications of surface noise for the motional coherence of trapped ions
• Quantum information processing with trapped electrons and superconducting electronics
• Increased surface flashover voltage in microfabricated devices
• Next generation design and prospects for CANNEX
• Feasibility study of quantum computing using trapped electrons
• Characterization of fluorescence collection optics integrated with a micro-fabricated surface electrode ion trap
• Probing surface charge densities on optical fibers with a trapped ion
• Spatially resolved surface dissipation over metal and dielectric substrates
• Ground-state cooling of a trapped ion using long-wavelength radiation
• Technologies for trapped-ion quantum information systems
• Observation of superconductivity and surface noise using a single trapped ion as a field probe
• Compact Yb${}^{+}$ optical atomic clock project: design principle and current status
• Spin readout of trapped electron qubits
• Microelectromechanical-System-Based Design of a High-Finesse Fiber Cavity Integrated with an Ion Trap
• Effects of electrode surface roughness on motional heating of trapped ions
• Crystallographic orientation dependence of work function: Carbon adsorption on Au surfaces
• Optimisation of two-dimensional ion trap arrays for quantum simulation
• Rydberg spectrum of a single trapped Ca${}^{+}$ ion: A Floquet analysis
• Second-Scale ${}^9{\text{Be}}^{+}$ Spin Coherence in a Compact Penning Trap
• Trapping Single Ions and Coulomb Crystals with Light Fields
• Measurement of electric-field noise from interchangeable samples with a trapped-ion sensor
• Coupling two laser-cooled ions via a room-temperature conductor
• vdW-corrected density functional study of electric field noise heating in ion traps caused by electrode surface adsorbates
• Mechanisms for carbon adsorption on Au(110)-(2*1): A work function analysis
• Efficient and robust photo-ionization loading of beryllium ions
• High-Fidelity Transport of Trapped-Ion Qubits in a Multi-Layer Array
• Optimal electrode geometries for 2-dimensional ion arrays with bi-layer ion traps
• Heating rate measurement and characterization of a prototype surface-electrode trap for optical frequency metrology
• Electric field noise in a high-temperature superconducting surface ion trap
• Changes in electric-field noise due to thermal transformation of a surface ion trap
• Multi-ion sensing of dipolar noise sources in ion traps
• Measurement-Induced Heating of Trapped Ions
• Ion trap with gold-plated alumina: substrate and surface characterization
• Correlated many-body noise and emergent $1/f$ behavior in an anharmonic fluctuator model
• Classical-quantum correspondence in the noise-based dissipative systems
• Mitigating noise of residual electric fields for single Rydberg atoms with electron photodesorption
• Plasma Constraints on the Millicharged Dark Matter
• Strong coherent ion-electron coupling using a wire data bus
• Insensitivity of Ion Motional Heating Rate to Trap Material over a Large Temperature Range
• Removal of high-voltage-induced surface charges by ultraviolet light
• Surface-induced decoherence and heating of charged particles
• Fast and high-yield fabrication of axially symmetric ion-trap needle electrodes via two step electrochemical etching
• Surface science motivated by heating of trapped ions from the quantum ground state
• Convenient Real-Time Monitoring of the Contamination of Surface Ion Trap
• An open-endcap blade trap for radial-2D ion crystals