Vacuum characterization of a compact room-temperature trapped ion system

We present the design and vacuum performance of a compact room-temperature trapped ion system for quantum computing, consisting of an ultra-high vacuum (UHV) package, a micro-fabricated surface trap, and a small form-factor ion pump. The system is designed to maximize mechanical stability and robust...

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Bibliographic Details
Published in:Applied physics letters 2020-12, Vol.117 (23)
Main Authors: Aikyo, Yuhi, Vrijsen, Geert, Noel, Thomas W., Kato, Alexander, Ivory, Megan K., Kim, Jungsang
Format: Article
Language:English
Subjects:
Applied physics
High vacuum
Quantum computing
Room temperature
Vacuum chambers
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Summary:We present the design and vacuum performance of a compact room-temperature trapped ion system for quantum computing, consisting of an ultra-high vacuum (UHV) package, a micro-fabricated surface trap, and a small form-factor ion pump. The system is designed to maximize mechanical stability and robustness by minimizing the system size and weight. The internal volume of the UHV package is only ≈ 2   cm 3, a significant reduction in comparison with conventional vacuum chambers used in trapped ion experiments. We demonstrate trapping of 174Yb+ ions in this system and characterize the vacuum level in the UHV package by monitoring both the rates of ion hopping in a double-well potential and ion chain reordering events. The calculated pressure in this vacuum package is ≈ 2.2 × 10 11   Torr, which is sufficient for the majority of current trapped ion experiments.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0029236