Quantum sensing of oscillating electric fields with trapped ions

verfasst von
Fabian Wolf, Piet O. Schmidt
Abstract

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.

Organisationseinheit(en)
Institut für Quantenoptik
QuantumFrontiers
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Externe Organisation(en)
Physikalisch-Technische Bundesanstalt (PTB)
Typ
Artikel
Journal
Measurement: Sensors
Band
18
Publikationsdatum
12.2021
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Elektrotechnik und Elektronik, Wirtschaftsingenieurwesen und Fertigungstechnik, Werkstoffmechanik, Elektronische, optische und magnetische Materialien
Elektronische Version(en)
https://doi.org/10.1016/j.measen.2021.100271 (Zugang: Offen)