14 February 2024
Objectives
This project aims at exploiting the remarkable properties of Rydberg states to advance the state of the art of optical atomic clocks and electromagnetic field sensors. The unique polarizability of Rydberg states will be used to accurately measure microwave fields. This method will be applied to the measurement of blackbody radiation in clocks, and to high-resolution electromagnetic imaging in an array of single atoms, both of which are quantum sensors requiring similar sensitivities. Secondly, we will explore methods for obtaining frequency-resolved measurements: in the single atom array, each atom will address a different frequency, and in the clocks we will aim for sensitive transitions in the THz range, close to the peak of blackbody radiation emission. Finally, we will exploit the theoretical and experimental experience gained in this project to define perspectives for using entangled states to overcome the standard quantum limit of quantum sensors. To achieve these objectives, the consortium brings together three partners with expertise in Rydberg atoms, state-of-the-art quantum sensors and the manipulation of entangled states between single atoms.
Consortium
- SYRTE, Observatoire de Paris : development of high accuracy optical lattice clocks
- Laboratoire Aimé Cotton (LAC, Orsay) : theory and experiments (Yb) with Rydberg atoms
- ONERA (Palaiseau) : development of micro-wave electric field sensors with spatial and frequency resolution
Members of the project
- Jérôme Lodewyck, SYRTE, Coordinator
- Patrick Cheinet, LAC
- Sylvain Schwartz, ONERA
- Alexis Bonnin, ONERA
- Hugo Tortel Kepa, stagiaire M2 LAC et SYRTE
- News
- November 2023 : Hugo Tortel Kepa starts his PhD these, in co-supervision between LAC and SYRTE
- October 2023 : best poster price at the Quantum-Saclay days
- September 2023 : Romain Granier starts his PhD thesis at ONERA
- Septembre 2023 : Quentin Marolleau starts a project funded post-doc
- Mars 2023 : Hugo Tortel joined the project for his M2 internship
Project reference
ANR-22-CE47-0009, 2022