We report the design, fabrication, and characterization of a cryogenic ion trap system for the implementation of quantum logic driven by near-field microwaves. The trap incorporates an on-chip microwave resonator with an electrode geometry designed to null the microwave field component that couples directly to the qubit, while giving a large field gradient for driving entangling logic gates. We map the microwave field using a single ⁴³Ca⁺ ion, and measure the ion trapping lifetime and motional mode heating rates for one and two ions.

中文翻译：

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用于高保真近场微波驱动量子逻辑的低温离子阱系统


我们报告了用于实现近场微波驱动的量子逻辑的低温离子阱系统的设计、制造和表征。该陷阱包含一个片上微波谐振器，其电极几何形状旨在消除直接耦合到量子位的微波场分量，同时提供用于驱动纠缠逻辑门的大场梯度。我们使用单个 ⁴³ Ca ⁺ 离子绘制微波场，并测量一个和两个离子的离子捕获寿命和运动模式加热速率。