Utilizing parametric amplification for enhancing quantum sensing of electric fields with ion qubits in a Penning trap

Jennifer Lilieholm; Bryce Bullock; Allison Carter; Matthew Affolter; Kevin Gilmore; Wenchao Ge; Shaun Burd; John Bollinger

doi:10.1117/12.3011741

13 March 2024 Utilizing parametric amplification for enhancing quantum sensing of electric fields with ion qubits in a Penning trap

Jennifer Lilieholm, Bryce Bullock, Allison Carter, Matthew Affolter, Kevin Gilmore, Wenchao Ge, Shaun Burd, John Bollinger

Author Affiliations +

Proceedings Volume PC12912, Quantum Sensing, Imaging, and Precision Metrology II; PC129123F (2024) https://doi.org/10.1117/12.3011741
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

Penning ion traps containing hundreds of ions held in a 2D crystal can be used to sense weak electric fields. We couple the crystal’s center-of-mass (CM) mode to the ions’ spin states, such that small perturbations of the crystal motion caused by external electric fields can be determined by measuring the spin precession. We have demonstrated a sensitivity to small displacements of 8.8 dB below the standard quantum limit (SQL), which enables an electric field sensitivity of 240 nV/m in 1 second. We plan to increase this sensitivity by parametrically amplifying the CM motion, which we expect to improve our sensitivity to displacements by a further 10 dB below the SQL. Supported by an appointment to the Intelligence Community Postdoctoral Research Fellowship Program, AFOSR grant FA9550-20-1-0019, by DARPA ONISQ, and by DOE, Office of Science, NQIS Research Center QSA

Conference Presentation

Citation Download Citation

Jennifer Lilieholm, Bryce Bullock, Allison Carter, Matthew Affolter, Kevin Gilmore, Wenchao Ge, Shaun Burd, and John Bollinger "Utilizing parametric amplification for enhancing quantum sensing of electric fields with ion qubits in a Penning trap", Proc. SPIE PC12912, Quantum Sensing, Imaging, and Precision Metrology II, PC129123F (13 March 2024); https://doi.org/10.1117/12.3011741

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