Prof. Nicolas Treps Profile

Prof. Nicolas Treps

at Lab Kastler Brossel

SPIE Involvement:

Conference Program Committee | Author | Editor

Proceedings Article | 20 June 2024 Presentation

Separation estimation of two incoherent point sources using sum frequency generation.

Maxime Mertens, Ilya Karuseichyk, Romain Demur, Luc Leviandier, Arnaud Grisard, Nicolas Treps

Proceedings Volume PC13004, PC1300402 (2024) https://doi.org/10.1117/12.3017599

KEYWORDS: Sum frequency generation, Quantum experiments, Quantum conversion, Laser crystals, Infrared radiation, Diffraction, Crystals, Visible radiation, Signal detection, Quantum sources

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Proceedings Article | 13 March 2024 Presentation

Ultra-sensitive separation estimation of optical sources

Nicolas Treps

Proceedings Volume PC12912, PC1291232 (2024) https://doi.org/10.1117/12.3012369

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Proceedings Article | 9 March 2023 Presentation

Experimental source separation estimation reaching the Cramér-Rao bound

David Barral, Clémentine Rouvière, Antonin Grateau, Ilya Karuseichyk, Giacomo Sorelli, Manuel Gessner, Mattia Walschaers, Nicolas Treps

Proceedings Volume PC12447, PC124471A (2023) https://doi.org/10.1117/12.2657172

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Proceedings Article | 3 August 2022 Presentation

Single-pass femtosecond parametric process towards continuous-variable quantum networks

Francesca Sansavini, Matthieu Ansquer, Tiphaine Kouadou, Nicolas Treps, Valentina Parigi

Proceedings Volume PC12133, PC121330D (2022) https://doi.org/10.1117/12.2621823

KEYWORDS: Quantum networks, Femtosecond phenomena, Quantum computing, Ultrafast phenomena, Signal processing, Photonics, Homodyne detection, Waveguides, Singular optics, Sensors

Proceedings Article | 3 June 2022 Presentation

Detection protocol for non-Gaussian quantum steering

Carlos Lopetegui, Manuel Gessner, Matteo Fadel, Nicolas Treps, Mattia Walschaers

Proceedings Volume PC12133, PC1213306 (2022) https://doi.org/10.1117/12.2621501

KEYWORDS: Quantum information, Homodyne detection, Quantum computing, Radar, Quantum optics, Quantum information processing, Computer simulations

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Recent developments, such as the experimental realization of large-scale cluster states, have built a valid case for continuous-variable quantum optics as a promising platform for quantum information processing. The capability of creating non-Gaussian states is key to building a universal quantum computer and achieving a quantum computational advantage. On the other hand, quantum correlations are also at the core of current developments in quantum technologies. Yet, quantum correlations in non-Gaussian states are still poorly understood for continuous-variable systems. In this contribution we will focus on quantum steering, where Alice and Bob each share a part of bipartite quantum state and perform local measurements on their respective subsystem. Quantum steering from Alice to Bob occurs when Bob can exploit information from Alice’s measurements to infer the outcome of his observables’ measurement more precisely than allowed by classical correlations. The paradigmatic example for this phenomenon is found when Alice and Bob both measure field quadratures. In this case, Bob can construct conditional variances that violate Heisenberg’s inequality. This violation, known as Reid’s criterion, is a signature of quantum steering that relies purely on Gaussian features of the state. More generally, we speak of Gaussian steering when we can violate steering inequality using only information from the state’s covariance matrix. For non-Gaussian states, the covariance matrix only offers limited information about the state, and many properties remain under the radar. Therefore, certification protocols of quantum steering for non-Gaussian states are scarce and generally highly demanding from an experimental point of view. In this contribution, we use a recently established connection between quantum steering and the (quantum) Fisher information to develop a new protocol for detection of quantum steering in non-Gaussian. This protocol relies exclusively on homodyne measurements.

Proceedings Article | 3 June 2022 Presentation

Towards the quantum limit for two bright-source separation estimation

Giacomo Sorelli, Clémentine Rouvière, Ilya Karuseichyk, David Barral, Manuel Gessner, Mattia Walschaers, Nicolas Treps

Proceedings Volume PC12133, PC121330G (2022) https://doi.org/10.1117/12.2621706

KEYWORDS: Super resolution, Statistical analysis, Quantum physics, Quantum information, Light sources, Microscopy, Estimation theory, Diffraction, Astronomy

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Proceedings Article | 9 March 2022 Presentation

Separation estimation at the quantum limit with arbitrary Gaussian sources

Giacomo Sorelli, Ilya Karuseichyk, Clémentine Rouvière, Manuel Gessner, Mattia Walschaers, Nicolas Treps

Proceedings Volume PC12016, PC120162F (2022) https://doi.org/10.1117/12.2618307

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Proceedings Article | 9 October 2021 Paper

Distribution and quantification of Wigner negativity remotely generated via Einstein-Podolsky-Rosen steering

Yu Xiang, Shuheng Liu, Jiajie Guo, Qihuang Gong, Nicolas Treps, Qiongyi He, Mattia Walschaers

Proceedings Volume 11905, 1190508 (2021) https://doi.org/10.1117/12.2602852

KEYWORDS: Quantum information, Quantum computing, Quantum physics, Quantum networks, Curium, Quantum efficiency, Optical networks, Computing systems, Computer simulations, Teleportation, Quantum information theory

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Proceedings Article | 5 March 2021 Presentation

Experimental multiparameter estimation for incoherent sources imaging reaching the quantum limit

Nicolas Treps, Pauline Boucher, Manuel Gessner, Clémentine Rouvière, Giacomo Sorelli, Mattia Walschaers, Claude Fabre

Proceedings Volume 11700, 117002G (2021) https://doi.org/10.1117/12.2588338

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Proceedings Article | 5 March 2021 Presentation

Optimal observables for practical super-resolution imaging

Giacomo Sorelli, Manuel Gessner, Mattia Walschaers, Nicolas Treps

Proceedings Volume 11700, 1170044 (2021) https://doi.org/10.1117/12.2588352

KEYWORDS: Super resolution, Quantum information, Diffraction, Transmission electron microscopy, Optical resolution, Optical imaging, Microscopy, Imaging devices, Image resolution, Electromagnetism

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Proceedings Article | 17 September 2020 Presentation + Paper

Spatial eigenmodes of light in atmospheric turbulence

Vyacheslav Shatokhin, David Bachmann, Giacomo Sorelli, Nicolas Treps, Andreas Buchleitner

Proceedings Volume 11532, 115320G (2020) https://doi.org/10.1117/12.2573477

KEYWORDS: Computer programming, Atmospheric turbulence, Turbulence, Adaptive optics, Atmospheric propagation, Scintillation, Wave propagation, Atmospheric modeling, Atmospheric sciences, Quantum communications

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Proceedings Article | 9 March 2020 Presentation

Gaussian and non-Gaussian multimode entangled states of optical frequency combs (Conference Presentation)

Nicolas Treps

Proceedings Volume 11266, 112660S (2020) https://doi.org/10.1117/12.2550793

KEYWORDS: Entangled states, Frequency combs, Quantum computing, Ultrafast phenomena, Sum-frequency generation, Homodyne detection

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Proceedings Article | 24 May 2018 Paper

Increasing image resolution in near-infrared to visible upconversion detection for long-range active imaging

Romain Demur, Arnaud Grisard, Eric Lallier, Luc Leviandier, Loïc Morvan, Nicolas Treps, Claude Fabre

Proceedings Volume 10677, 1067703 (2018) https://doi.org/10.1117/12.2306279

KEYWORDS: Crystals, Upconversion, Image resolution, Phase matching, Signal detection, Imaging systems, Nonlinear crystals, Laser development, Range imaging

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Proceedings Article | 2 June 2017 Presentation

A single-photon subtractor for multimode quantum states (Conference Presentation)

Nicolas Treps, Clément Jacquard, Young Sik Ra, Jonathan Roslund, Adrien Dufour, Claude Fabre

Proceedings Volume 10118, 1011806 (2017) https://doi.org/10.1117/12.2256360

KEYWORDS: Quantum state engineering, Quantum networks, Light sources, Quantum information processing, Singular optics, Optical components, Sum-frequency generation, Beam controllers, Ultrafast phenomena, Homodyne detection

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Proceedings Article | 3 February 2004 Paper

Quantum laser pointer and other applications of squeezed light

Hans-Albert Bachor, Warwick Bowen, Nicolai Grosse, Ben Buchler, Ulrik Andersen, Roman Schnabel, Ping Lam, Nicolas Treps, Claude Fabre, Agnes Maitre

Proceedings Volume 5161, (2004) https://doi.org/10.1117/12.512328

KEYWORDS: Sensors, Beam splitters, Transmission electron microscopy, Interference (communication), Quantum optics, Wave plates, Modulation, Optical testing, Polarization, Beam shaping

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Proceedings Article | 3 February 2004 Paper

Quantum imaging with continuous variables

Sylvain Gigan, V. Delaubert, M. Martinelli, Nicolas Treps, Claude Fabre, Agnes Maitre

Proceedings Volume 5161, (2004) https://doi.org/10.1117/12.507288

KEYWORDS: Optical parametric oscillators, Confocal microscopy, Interference (communication), Crystals, Iris recognition, Quantum information, Transmission electron microscopy, Optical amplifiers, Mirrors, Transmittance

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Proceedings Article | 16 May 2003 Open Access

Optical squeezing in temporal, polarization, and spatial domains

Thomas Symul, Warwick Bowen, Roman Schnabel, Nicolas Treps, Ben Buchler, Timothy Ralph, Andrew Lance, Nicolai Grosse, A. Dolinska, J. Wu, J. Gao, Claude Fabre, Hans-Albert Bachor, Ping Lam

Proceedings Volume 5111, (2003) https://doi.org/10.1117/12.497081

KEYWORDS: Polarization, Beam splitters, Sensors, Quantum information, Second-harmonic generation, Oscillators, Homodyne detection, Signal to noise ratio, Optical amplifiers, Mirrors

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Showing 5 of 17 publications

SPIE Conference Volume | 14 July 2022

Quantum Technologies 2022

SPIE Conference Volume | 20 April 2020

Quantum Technologies 2020

Conference Committee Involvement (3)

Quantum Technologies 2024

8 April 2024 | Strasbourg, France

Quantum Technologies 2022

4 April 2022 | Strasbourg, France

Quantum Technologies 2020

7 April 2020 | Online Only, France

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