Hafele and Keating on a chip: Sagnac interferometry with a single clock (2020)
Presentation / Conference Contribution
Johnson, J., Foxon, B., Atkocius, V., Gentile, F., Jammi, S., Poulios, K., & Fernholz, T. (2020). Hafele and Keating on a chip: Sagnac interferometry with a single clock. Proceedings of SPIE, 11296, https://doi.org/10.1117/12.2552686

We describe our progress in the development of an atom based rotation sensor, which employs state-dependent trapping potentials to transport ultracold atoms along a closed path and perform Sagnac interferometry. Whilst guided atom interferometers are... Read More about Hafele and Keating on a chip: Sagnac interferometry with a single clock.

Voigt-effect-based three-dimensional vector magnetometer (2019)
Journal Article
Pyragius, T., Marin Florez, H., & Fernholz, T. (2019). Voigt-effect-based three-dimensional vector magnetometer. Physical Review A, 100(2), Article 023416. https://doi.org/10.1103/PhysRevA.100.023416

We describe a method to dispersively detect all three vector components of an external magnetic field using alkali atoms based on the Voigt effect. Our method relies on measuring the linear birefringence of the radio frequency dressed atomic medium v... Read More about Voigt-effect-based three-dimensional vector magnetometer.

Shot-noise-limited nanomechanical detection and radiation pressure backaction from an electron beam (2019)
Journal Article
Pairis, S., Donatini, F., Hocevar, M., Tumanov, D., Vaish, N., Claudon, J., …Verlot, P. (2019). Shot-noise-limited nanomechanical detection and radiation pressure backaction from an electron beam. Physical Review Letters, 122(8), Article 083603. https://doi.org/10.1103/physrevlett.122.083603

Detecting nanomechanical motion has become an important challenge in science and technology. Recently, electromechanical coupling to focused electron beams has emerged as a promising method adapted to ultralow scale systems. However the fundamental m... Read More about Shot-noise-limited nanomechanical detection and radiation pressure backaction from an electron beam.

Strain-mediated coupling in a quantum dot-mechanical oscillator hybrid system (2013)
Journal Article
Yeo, I., de Assis, P., Gloppe, A., Dupont-Ferrier, E., Verlot, P., Malik, N. S., …Richard, M. (2014). Strain-mediated coupling in a quantum dot-mechanical oscillator hybrid system. Nature Nanotechnology, 9(2), 106-110. https://doi.org/10.1038/nnano.2013.274

Recent progress in nanotechnology has allowed the fabrication of new hybrid systems in which a single two-level system is coupled to a mechanical nanoresonator. In such systems the quantum nature of a macroscopic degree of freedom can be revealed and... Read More about Strain-mediated coupling in a quantum dot-mechanical oscillator hybrid system.