Time and Frequency Resolution of Alternating Electric Signals via Single-Atom Sensor

Wei, Yuquan; Yuan, Quan; Chen, Liang; Cui, Tiecheng; Li, J.; Dai, Shutao; Zhou, Fei; Feng, Mang

doi:10.1103/physrevapplied.19.064062

Cited by 3 publications

(1 citation statement)

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“…[6,7] In particular, the strong coupling to external electric fields makes the trapped ions excellent sensors for characterizing weak variation of the external electric fields. [8][9][10] In ion traps, the electric field fluctuations are typical types of noises, leading to instability of the trapped ions, i.e., the main detrimental factor for confining and manipulating the ions. [11,12] Generally speaking, electric-field noises above surfaces provide a significant challenge to many disparate areas of physics, from instability of the system to imprecision of measurement.…”

Section: Introductionmentioning

confidence: 99%

Building and characterizing a stylus ion-trap system

Cui 崔,

Wei 魏,

Li 李

et al. 2024

Chinese Phys. B

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Cold trapped ions can be excellent sensors for ultra-precision detection of physical quantities, which strongly depends on the measurement situation at hand. The stylus ion trap, formed by two concentric cylinders over a ground plane, holds the promise of relatively simple structure and larger solid angle for optical access and fluorescence collection in comparison with the conventional ion traps. Here we report our fabrication and characterization of the first stylus ion trap constructed in China, aiming for studying quantum optics and sensing weak electric fields in the future. We have observed the stable confinement of the ion in the trapping potential for more than two hours and measured the heating rate of the trap to be $d\epsilon /dt=7.10\pm 0.13$ meV/s by the Doppler recooling method. Our work starts a way to building practical quantum sensors with high efficiency of optical collection and with ultimate goal for contributing to future quantum information technology.

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