Work

Cooperative sensing with impurities in a two-dimensional subwavelength array

Year: 2025

Type: article

Abstract: We propose a versatile quantum sensing protocol based on two dissipatively coupled distant atoms embedded as impurities in a two-dimensional subwavelength atomic array. The array acts analogously to a waveguide or cavity for the emitter light, where a modified decay environment creates cooperative enhancement, allowing for more efficient population transfer. By measuring the population of one of the impurity atoms, it is possible to detect frequency shifts in the emitters' resonance frequencies. We analytically estimate achievable sensitivities as well as the dependence on various system parameters. The proposed protocol is robust against various environmental factors and perturbations, which enhances its applicability in real-world scenarios.

Source: Physical Review A

DOI: 10.1103/physreva.111.032603

Authors: Oliver August Dall'Alba Sandberg, Stefan Ostermann, Susanne F. Yelin

Institutions: University of Copenhagen, Harvard University

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Horizon 2020 Framework Programme, H2020 Marie Skłodowska-Curie Actions

Awards: NSF BSF: Nonlinear Photon Interactions in Cooperative Quantum Optical Systems, TALENT Doctoral Fellowship Programme, Center: Center for Ultracold Atoms