Closed-loop quantum interferometry for phase-resolved Rydberg-atom field sensing

Published

November 3, 2023

Author(s)

Samuel Berweger, Alexandra Artusio-Glimpse, Andrew Rotunno, Nikunjkumar Prajapati, Joseph Christesen, Kaitlin Moore, Matthew Simons, Christopher Holloway

Abstract

Although Rydberg atom-based electric field sensing provides key advantages over traditional antenna-based detection, it remains limited by the need for a local oscillator (LO) for low-field and phase resolved detection. In this work, we demonstrate the general applicability of closed-loop quantum interferometric schemes for Rydberg field sensing, which eliminate the need for an LO. We reveal that the quantum-interferometrically defined phase and frequency of our scheme provides an internal reference that enables LO-free full 360$^\circ$-resolved phase sensitivity. This internal reference can further be used analogously to a traditional LO for atom-based down-mixing to an intermediate frequency for lock-in-based phase detection, which we demonstrate by demodulating a four phase-state signal broadcast on the atoms.

Citation

Optica

Pub Type

Journals

Download Paper

https://doi.org/10.1103/PhysRevApplied.20.054009

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Keywords

Rydberg, Electrometry, Atom Physics, RF sensing

Citation

Berweger, S. , Artusio-Glimpse, A. , Rotunno, A. , Prajapati, N. , Christesen, J. , moore, K. , SIMONS, M. and Holloway, C. (2023), Closed-loop quantum interferometry for phase-resolved Rydberg-atom field sensing, Optica, [online], https://doi.org/10.1103/PhysRevApplied.20.054009, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935820 (Accessed October 28, 2025)