Ablation loading of barium ions into a surface-electrode trap
Abstract
Trapped-ion quantum information processing may benefit from qubits encoded in isotopes that are practically available in only small quantities, e.g., due to low natural abundance or radioactivity. Laser ablation provides a method of controllably liberating neutral atoms or ions from low-volume targets, but energetic ablation products can be difficult to confine in the small ion-electrode distance, micron-scale microfabricated traps amenable to high-speed, high-fidelity manipulation of ion arrays. Here, we investigate ablation-based ion loading into surface-electrode traps of different sizes to test a model describing ion loading probability as a function of effective trap volume and other trap parameters. We characterize loading of ablated barium from a metallic source in two cryogenic surface-electrode traps with 730 and 50 μm ion-electrode distances. Our loading rate agrees with a predictive analytical model, providing insight for the confinement of limited-quantity species of interest for quantum computing, simulation, and sensing.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 26, 2023
- Source ID
- 10.1063/5.0149778
Entities
People
- C. D. Bruzewicz
- Gabriel Mintzer
- Isaac L. Chuang
- J Chiaverini
- Susanna Todaro
- X. Shi
Organizations
- Army Research Office
- Intelligence Community Postdoctoral Research Fellowship Program
- Massachusetts Institute of Technology
- National Science Foundation