A5021830145- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Photonic and Optical Devices
- Quantum Computing Algorithms and Architecture
- Quantum Mechanics and Applications
- Optical Network Technologies
- Orbital Angular Momentum in Optics
Laboratoire Kastler Brossel
2024
Sorbonne Université
2019-2022
Centre National de la Recherche Scientifique
2021-2022
Université Paris Cité
2021
Laboratoire de Recherche en Informatique de Paris 6
2019
Institut d’Optique Graduate School
2019
University of Padua
2019
Agenzia Spaziale Italiana
2019
Istituto di Fotonica e Nanotecnologie
2019
Centre de Recherche en Informatique
2019
Abstract Establishing secure communication links at a global scale is major potential application of quantum information science but also extremely challenging for the underlying technology. Although milestone experiments using satellite-to-ground and exploiting singe-photon encoding implementing key distribution have shown recently that this goal achievable, it still necessary to further investigate practical solutions compatible with classical optical systems. Here, we examine feasibility...
Configurable and scalable continuous variable quantum networks for measurement-based information protocols or multipartite communication schemes can be obtained via parametric down conversion (PDC) in non-linear waveguides. In this work, we exploit symmetric group velocity matching (SGVM) to engineer the properties of squeezed modes PDC. We identify type II PDC a single waveguide as best suited process, since multiple with non-negligible amount squeezing obtained. explore, first time,...
Continuous variable encoding of quantum information requires the deterministic generation highly correlated states light in form networks, which, turn, necessitates controlled a large number squeezed modes. In this paper, we present an experimental source multimode at telecommunication wavelengths. Generation such wavelengths is especially important as it can enable processing, communication, and sensing beyond laboratory scale. We use single-pass spontaneous parametric down-conversion...
Spectro-temporal modes of light can be exploited for the generation high-dimensional Gaussian quantum states. Such states are at basis continuous variable information protocols where they have to support mode-selective non-Gaussian operations. We develop a general framework single-photon addition on multimode via parametric down conversion processes. identify analytical conditions single-mode and photon addition. show that spectral mode selectivity achieved in Type-II collinear conversion,...
We analyze the feasibility of continuous variable quantum key distribution from satellite. By modeling signal transmission, we quantify achievable rate including finite size effects. Results will help in determining mission requirements.