Physics

Quantum sensing of magnetic fields with molecular spins

C. Bonizzoni, A. Ghirri, et al.

This research, conducted by Claudio Bonizzoni, Alberto Ghirri, Fabio Santanni, and Marco Affronte, showcases groundbreaking quantum sensing protocols for AC magnetic fields with remarkable sensitivity. Utilizing molecular spin ensembles within hybrid quantum circuits and innovative dynamical decoupling techniques, this work opens new frontiers in quantum sensor applications without the need for optical readout.

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Index

Abstract

This paper demonstrates the implementation of quantum sensing protocols for AC magnetic fields using molecular spin ensembles embedded in hybrid quantum circuits. Dynamical Decoupling protocols, synchronized with AC magnetic fields, enhance sensitivity up to S ≈ 10⁻¹⁰ − 10⁻⁹ THz⁻¹/² using only echo detection at microwave frequency and without optical readout. This work paves the way for using molecular spins as quantum sensors.

Publisher

npj Quantum Information

Published On

Apr 23, 2024

Authors

Claudio Bonizzoni, Alberto Ghirri, Fabio Santanni, Marco Affronte