Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session F07: Quantum Metrology and Sensing: General I
8:00 AM–10:00 AM,
Wednesday, June 5, 2024
Room: 203A
Chair: Wenxuan Jia, Massachusetts Institute of Technology
Abstract: F07.00006 : Achieving Wideband Precision Vector Signal Analysis on Quantum Harmonic Oscillator Platforms*
9:00 AM–9:12 AM
Presenter:
Clayton Z Ho
(UCLA)
Authors:
Clayton Z Ho
(UCLA)
Grant D Mitts
(UCLA)
Hao Wu
(UCLA)
Eric R Hudson
(UCLA)
Using a single trapped 40Ca+ ion, we demonstrate a novel technique that allows for wideband amplitude, frequency, and phase sensing of a field while retaining leading-edge sensitivities.
By applying quadrupole microwave fields about a dipole field of interest, we engineer a motional Raman transition that results in a phase-sensitive displacement.
As a proof-of-concept, we demonstrate commercial network analysis by reproducing the known transfer function of a filter element. We then showcase the potential for challenging in situ measurements by using our scheme to calibrate qubit control lines.
Benchmarking of our scheme further confirms the achievement of precisions and sensitivities beyond the standard quantum limit.
Our scheme is general and requires no apparatus beyond the addressing infrastructure of the QHO, and is thus easily extendable to other QHO platforms.
*This research was supported by the National Science Foundation (Grants No. 2110421 and No. CHE-1900555), the Army Research Office (Grant No. W911NF-19-1-0297) and the Air Force Office of Surface Research (Grant No. FA9550- 20-1-0323). We acknowledge support from the NSF QLCI program through Grant No. OMA-2016245.
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