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Trapping Electrons in a Room-Temperature Microwave Paul Trap
Physical Review X ( IF 12.5 ) Pub Date : 2021-01-29 , DOI: 10.1103/physrevx.11.011019
Clemens Matthiesen , Qian Yu , Jinen Guo , Alberto M. Alonso , Hartmut Häffner

We demonstrate trapping of electrons in a millimeter-sized quadrupole Paul trap driven at 1.6 GHz in a room-temperature ultrahigh vacuum setup. Cold electrons are introduced into the trap by ionization of atomic calcium via Rydberg states and stay confined by microwave and static electric fields for several tens of milliseconds. A fraction of these electrons remain trapped longer and show no measurable loss for measurement times up to a second. Electronic excitation of the motion reveals secular frequencies that can be tuned over a range of several tens to hundreds of MHz. Operating a similar electron Paul trap in a cryogenic environment may provide a platform for all-electric quantum computing with trapped electron spin qubits.

中文翻译:

在室温微波中捕获电子Paul Trap

我们演示了在室温超高真空设置下以1.6 GHz驱动的毫米级四极Paul陷阱中的电子陷阱。冷电子通过Rydberg态的原子钙离子化而被引入陷阱,并被微波和静电场限制数十毫秒。这些电子中的一小部分被俘获的时间更长,并且在长达一秒的测量时间内没有可测量的损耗。运动的电子激励揭示了可以在几十到几百兆赫兹范围内调谐的长期频率。在低温环境中运行类似的电子Paul陷阱可以为具有捕获的电子自旋量子位的全电量子计算提供平台。
更新日期:2021-01-29
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