TY - JOUR

T1 - Quantum sensing of oscillating electric fields with trapped ions

AU - Wolf, Fabian

AU - Schmidt, Piet O.

N1 - Funding Information: We acknowledge support from Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy – EXC-2123 Quantum Frontiers – 390837967 and Project-ID 434617780 – SFB 1227 (DQ-mat, project B05). This work was financially supported by the State of Lower-Saxony, Hannover, Germany , from VW Vorab.

PY - 2021/12

Y1 - 2021/12

N2 - Quantum noise is a fundamental limitation for quantum sensors and results in the so-called shot-noise limit. Nowadays, several systems such as optical clocks or gravitational wave detectors approach measurement sensitivities where this limitation poses a major contribution to the total statistical uncertainty. It is known that this limit can be overcome by preparing the probe in a non-classical state. We will give an overview over the different non-classical states that have been implemented in the motion of single trapped ions and discuss their individual advantages and limitations in metrology. Possible applications for the presented experiments are the measurement of small oscillating electric fields and trapping frequencies. The Focus will be on our experimental work on Fock states, where quantum-enhanced sensing in both scenarios is possible with the same quantum state.

AB - Quantum noise is a fundamental limitation for quantum sensors and results in the so-called shot-noise limit. Nowadays, several systems such as optical clocks or gravitational wave detectors approach measurement sensitivities where this limitation poses a major contribution to the total statistical uncertainty. It is known that this limit can be overcome by preparing the probe in a non-classical state. We will give an overview over the different non-classical states that have been implemented in the motion of single trapped ions and discuss their individual advantages and limitations in metrology. Possible applications for the presented experiments are the measurement of small oscillating electric fields and trapping frequencies. The Focus will be on our experimental work on Fock states, where quantum-enhanced sensing in both scenarios is possible with the same quantum state.

UR - http://www.scopus.com/inward/record.url?scp=85122694590&partnerID=8YFLogxK

U2 - 10.1016/j.measen.2021.100271

DO - 10.1016/j.measen.2021.100271

M3 - Article

AN - SCOPUS:85122694590

VL - 18

JO - Measurement: Sensors

JF - Measurement: Sensors

M1 - 100271

ER -