Toward realization of ion-photon interface on a surface trap

2022 Fiscal Year Final Research Report

• Project/Area Number: 21K13861
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
• Research Institution: The University of Tokyo
• Principal Investigator: Osada Alto 東京大学, 大学院総合文化研究科, 助教 (90804138)
• Project Period (FY): 2021-04-01 – 2023-03-31
• Keywords: イオントラップ

Outline of Final Research Achievements

In this research, we have developed elemental technologies for realization of ion-optical cavity coupling systems on surface traps. As a result of adopting atom generation by laser ablation and its photoionization as a method of generating atomic ions when constructing the ion trap experimental system, the combination with the surface electrode ion trap worked well, and only single ions were deterministically generated. We obtained results suggesting the existence of conditions that would allow capture in In addition, atom generation by laser ablation is a method that causes little contamination of the surroundings, and is promising as a method that impairs the performance of the optical resonator with little damage. Furthermore, we succeeded in realizing a compact laser ablation atomic source system using optical fibers.

Free Research Field

量子技術

Academic Significance and Societal Importance of the Research Achievements

本研究の成果はイオントラップ量子技術の基礎実験技術に関するものにとどまるが、それだけに今後イオントラップ量子技術において用いられるスタンダードなテクニックとして残り続ける可能性が高い。また、そのファイバーによるコンパクト化はイオントラップ量子技術の工学的側面を推し進めるものであり、かつ光技術を推し進めるものでもあるといえ、今後ますます社会において重要性を増す量子技術の小さくはあるが重要なステップであったと考える。