Florian Fesquet

Contact
Assignments
  • Alumnus/Alumna: Quantum Systems
  • Alumnus/Alumna: Quantum Communication and Sensing

 

Florian Fesquet was a member of the Gross group at WMI as a Master's and Ph.D. Student between 2019 and 2025.

Master's Thesis: Experimental Implementation of a Quantum Key Distribution with Squeezed Microwaves (2020)
Ph.D. Thesis: Demonstration of Microwave Single-Shot Quantum Key Distribution (2025)

In his Ph.D. thesis, Florian Fesquet realized a secure quantum network in the microwave range. On the one hand, he has made fundamental theoretical assessments that were still lacking at the beginning of his work. On the other hand, he has conducted systematic experiments and made important technical developments for the practical implementation of Quantum Key Distribution (QKD) in the microwave range. He was able to realize microwave-based single-shot QKD for the first time and derived clear prospects for the realization of QKD over an (open air) link between two antennas.  

He left WMI in July 2025 to join Alice & Bob in Paris.

 

Publications of Florian Fesquet

2025

ICON publication
Quantum teleportation over thermal microwave network
Research Article | arXiv:2508.14691
W. K. Yam, S. Gandorfer, F. Fesquet, M. Handschuh, K. E. Honasoge, A. Marx, R. Gross, K. G. Fedorov
ICON publication
Cryogenic microwave link for quantum local area networks
Research Article | npj Quantum Information 11, 87  (2025)
Preprint: arXiv:2308.12398
M. Renger, S. Gandorfer, W. Yam, F. Fesquet, M. Handschuh, K. E. Honasoge, F. Kronowetter, Y. Nojiri, M. Partanen, M. Pfeiffer, H. van der Vliet, A. J. Matthews, J. Govenius, R. N. Jabdaraghi, M. Prunnila, A. Marx, F. Deppe, R. Gross, K. G. Fedorov
ICON publication
Demonstration of Microwave Single-Shot Quantum Key Distribution
PHD Thesis | Technical University of Munich  (2025)
Florian Fesquet
ICON publication
Two-dimensional Planck Spectroscopy for Microwave Photon Calibration
Research Article | Physical Review Applied 23, 024064  (2025)
Preprint: arXiv:2308.02389
S. Gandorfer, M. Renger, W. K. Yam, F. Fesquet, A. Marx, R. Gross, K. G. Fedorov

2024

ICON publication
Demonstration of microwave single-shot quantum key distribution
Research Article | Nature Communications 15, 7544  (2024)
Preprint: arXiv:2311.11069
F.Fesquet, F.Kronowetter, M.Renger, W.K.Yam, S.Gandorfer, K.Inomata, Y.Nakamura, A.Marx, R.Gross, K.G.Fedorov

2023

ICON publication
Perspectives of microwave quantum key distribution in open-air
Research Article | Physical Review A 108, 032607  (2023)
Preprint: arXiv:2203.05530
Florian Fesquet, Fabian Kronowetter, Michael Renger, Qiming Chen, Kedar Honasoge, Oscar Gargiulo, Yuki Nojiri, Achim Marx, Frank Deppe, Rudolf Gross, Kirill G. Fedorov
ICON publication
Quantum microwave parametric interferometer
Research Article | Physical Review Applied 20, 024049  (2023)
Preprint: arXiv:2303.01026
F. Kronowetter, F. Fesquet, M. Renger, K. Honasoge, Y. Nojiri, K. Inomata, Y. Nakamura, A. Marx, R. Gross, K. G. Fedorov

2022

ICON publication
Flow of quantum correlations in noisy two-mode squeezed microwave states
Research Article | Physical Review A 106, 052415  (2022)
Preprint: arXiv:2207.06090
M. Renger, S. Pogorzalek, F. Fesquet, K. Honasoge, F. Kronowetter, Q. Chen, Y. Nojiri, K. Inomata, Y. Nakamura, A. Marx, F. Deppe, R. Gross, K. G. Fedorov
ICON publication
The scattering coefficients of superconducting microwave resonators. I. Transfer-matrix approach
Research Article | Physical Review B 106, 214505  (2022)
Preprint: arXiv:2109.07762
Qi-Ming Chen, Meike Pfeiffer, Matti Partanen, Florian Fesquet, Kedar E. Honasoge, Fabian Kronowetter, Yuki Nojiri, Michael Renger, Kirill G. Fedorov, Achim Marx, Frank Deppe, Rudolf Gross
ICON publication
The scattering coefficients of superconducting microwave resonators. II. System-bath approach
Research Article | Physical Review B 106, 214506  (2022)
Preprint: arXiv:2109.07766
Qi-Ming Chen, Matti Partanen, Florian Fesquet, Kedar E. Honasoge, Fabian Kronowetter, Yuki Nojiri, Michael Renger, Kirill G. Fedorov, Achim Marx, Frank Deppe, Rudolf Gross
ICON publication
Tuning and Amplifying the Interactions in Superconducting Quantum Circuits with Subradiant Qubits
Research Article | Physical Review A 105, 012405  (2022)
Preprint: arXiv:2107.01842
Qi-Ming Chen, Florian Fesquet, Kedar E. Honasoge, Fabian Kronowetter, Yuki Nojiri, Michael Renger, Kirill G. Fedorov, Achim Marx, Frank Deppe, Rudolf Gross
Back to list